Orobanchaceae

Disclaimer

Content is from Kirkbride et al. 2006Kirkbride et al. 2006:
Kirkbride JH, Jr, Gunn CR, and Dallwitz MJ. 2006. Family guide for fruits and seeds, vers. 1.0. Accessed September 2020-January 2022. URL: https://nt.ars-grin.gov/seedsfruits/keys/frsdfam/index.cfm .
, without modification. Updates are forthcoming.

Taxonomy

Orobanchaceae Ventenat

Common name: Broom-rape Family.

Number of genera: 15 genera.

Number of species (Mabberley 1997): 230 species.

Disseminule

Fruit (dehisced), or seed.

Description

Fruits: Pistil(s) compound; 1; 1-pistillate; with carpels united. Fruit pericarpium; simple; capsulecapsule:
a dry, dehiscent fruit derived from a compound ovary
; loculicidalloculicidal:
type of capsular dehiscence, opening longitudinally through the locules (compare septicidal)
capsulecapsule:
a dry, dehiscent fruit derived from a compound ovary
; capsulecapsule:
a dry, dehiscent fruit derived from a compound ovary
not inflated; capsulecapsule:
a dry, dehiscent fruit derived from a compound ovary
without operculumoperculum:
a dehiscent cap (or lid) of a seed or fruit that opens during germination or dehiscence
; without persistent central column; not within accessory organ(s); many-seeded; many; with 2(–3)-carpellate; with carpels united; with carpels remaining united at maturity; with carpels not radiating at maturity; with carpels remaining connected at stylestyle:
in a flower, the narrow and elongated part of the pistil between the stigma and the ovary; sometimes persisting in fruit
; without sterilesterile:
lacking male and/or female reproductive parts; also, not producing fruit or seed
carpels; not sulcatesulcate:
surface relief—having one or more elongate, relatively narrow and shallow depressions or grooves
; in transection tereteterete:
approximately circular in cross section; width and thickness approximately equal
; apexapex:
the point farthest from the point of attachment, or the "tip" of an organ
not beaked; dehiscentdehiscent:
(v. dehisce) splitting open at maturity to release contents (of a fruit)
(regularly or irregularly). Dehiscentdehiscent:
(v. dehisce) splitting open at maturity to release contents (of a fruit)
unit seed(s). Dehiscentdehiscent:
(v. dehisce) splitting open at maturity to release contents (of a fruit)
passively (assumed); at middle, or apexapex:
the point farthest from the point of attachment, or the "tip" of an organ
; and shedding seeds; without replumreplum:
the rim, formed by the persistent placentas, and connected by a false septum in Brassicaceae fruits. The fruit valves are attached to this rim and separate from it in dehiscent fruits.
. Epicarpepicarp:
outer layer of fruit wall or pericarp, if divided into layers; note here used synonymously with exocarp
brown (all shades); dulldull:
reflecting only a low proportion of incident light, with no apparent sheen
; durable; glabrousglabrous:
without hairs
; without armature; without wing(s); without apicalapical:
at or pertaining to the end of the seed or fruit distal from its point of attachment (i.e., base)
respiratory hole. Mesocarpmesocarp:
the middle layer of the pericarp, if divided into layers
absent. Endocarpendocarp:
the inner layer of the pericarp, if divided into layers
present; not separating from exocarpexocarp:
outer layer of fruit wall or pericarp, if divided into layers; note here used synonymously with epicarp
; thin; not splitting into 1-seeded pyrenes; smooth; without wing; without operculumoperculum:
a dehiscent cap (or lid) of a seed or fruit that opens during germination or dehiscence
; without secretory cavities; without mechanism for seedling escape; without grooves; without longitudinallongitudinal:
of or relating to length or the lengthwise dimension
ridges. Funiculusfuniculus:
(alt. funicle) stalk connecting the ovule (later seed) to the ovary (later fruit) placenta
short; short without seed bearing hookswith hooks:
bristles or spines with curved or backwards pointing tips, or with secondary bristles along their length
(retinacula); not persisting in fruit after seed shed.

Seeds: Arilaril:
(broad sense) appendicular structure that wholly or partly envelops a seed and is produced from or a modification of the funicle, raphe, or outer integument; usually fleshy or pulpy, sometimes spongy or tufted-capillate, often brightly colored
absent. Seed minute; ovateovate:
2D shape—egg-shaped in outline, widest point is towards one end of the organ, the other end tapers gradually, attachment at or near the broad end (compare obovate, ovoid)
, or ellipsoidellipsoid:
3D shape—elliptic
, or triangulartriangular:
2D shape—three relatively straight sides with distinct corners; more angular than teardrop-shaped
, or squaresquare:
2D shape—geometric figure bounded by 4 straight sides of equal length and 4 90º-angles
(or rhomboidal); not bowl shaped; not nutlike; without winglike beakbeak:
a usually firm, terminal appendage, sometimes tapered
; without caudatecaudate:
tapering to a long, tail-like appendage
appendage(s); at maturity with food reserves; with endosperm; without canavanine. Sarcotestasarcotesta:
pulpy or fleshy outer layer of the seed coat, simulates aril
absent. Testatesta:
seed coat
present; without markedly different marginalmarginal:
at, on, or close to the margin or border
tissue; without fleshy or leatheryleathery:
texture—moderately thick, tough, and very pliable
layer over hard layer; surface unsmooth, or smooth; surface with depressed features, or discreet raised features, or merged raised features; surface punctatepunctate:
surface relief—dotted with pits or with translucent, sunken glands or with colored dots, similar to pitted
; surface tuberculatetuberculate:
surface relief—bearing small, warty, swelling, rounded, or variously shaped projections
, or granulargranular:
surface relief—having a grainy surface
; surface reticulatereticulate:
surface relief—netted, raised walls or concave grooves forming a net-like surface pattern with flat, concave, or convex interspaces
, or sculptured, or striatestriate:
surface relief—having fine, parallel lines, grooves or ridges
(long); without crease or line separating cotyledons from hypocotyl-radicle; without notch along margin where cotyledons from hypocotyl-radicle tip approach each other; without glands; without bristles; glabrousglabrous:
without hairs
; without wings; without collar; without operculumoperculum:
a dehiscent cap (or lid) of a seed or fruit that opens during germination or dehiscence
; colored; monochrome; blue, or black; thick; not becoming mucilaginousmucilaginous:
resembling mucilage; moist and sticky
when wetted; surrounding food reserve. Hilumhilum:
on seeds, the scar indicating where the funiculus was attached; on grass caryopses, the scar visible on the outer fruit surface revealing where the seed is attached on the inner fruit wall surface; or in Asteraceae cypselae, the scar visible on the outer fruit wall revealing where the fruit was attached to the receptacle
punctate. Endosperm development cellular; copious; fleshy; transparent; smooth; without starch, or with starch (Cistanche); with oils; without fatty acid containing cyclopropene; without apicalapical:
at or pertaining to the end of the seed or fruit distal from its point of attachment (i.e., base)
lobes; without chlorophyll; without isodiametric faceted surface; without odor. Embryo differentiated from food reserve; well developed; 1 per seed; partially filling testatesta:
seed coat
(with food reserve); 0.1 times the length of food reserve; at one end of seed not extending into a depression or cup; axileaxile:
on or of the axis
and centric; miniature; dwarf (globular); straight; parallel to seed length; embedded in endosperm; without coleorhiza; without simmondsin; without stomata; not green; acotyledonous. Hypocotyl-radicle undeveloped.

Habitat and crop association

Noxious weeds: 1 or more USA Federal noxious weeds in this family and 1 or more USA state noxious weeds in this family.

USA Federal Noxious Weeds:

Aeginetia acaulis (Roxb.) Walp.: USA Federal Noxious Weed●.

Aeginetia indica L.: USA Federal Noxious Weed●.

Aeginetia sinensis Beck: USA Federal Noxious Weed●.

Aeginetia spp.: USA Federal Noxious Weed●; USA state noxious weed: FL●.

Orobanche flava Mart. ex F. W. Schultz: USA Federal Noxious Weed●.

Orobanche lucorum A. Braun ex F. W. Schultz: USA Federal Noxious Weed●.

Orobanche ramosa L.: USA Federal Noxious Weed●;USA state noxious weed: AZ●, CA●.

Orobanche salviae F. W. Schultz: USA Federal Noxious Weed●.

Orobanche spp.: USA Federal Noxious Weed●; USA state noxious weed: FL●, PR●.

Symbols: ªaquatic weed; ●terrestrial weed; °weed in seed.

Last updated February 2006.

USA states and territories with listed noxious weeds: Arizona (AZ), California (CA), Florida (FL), Oregon (OR), and Puerto Rico (PR).

USA state and territory noxious weeds:

Aeginetia spp.: USA Federal Noxious Weed●; USA state noxious weed: FL●.

Orobanche ludoviciana var. cooperi (A. Gray) Beck (=Orobanche cooperi (A. Gray) A. Heller): USA state noxious weed: CA●.

Orobanche minor Sm.: USA state noxious weed: OR●.

Orobanche ramosa L.: USA Federal Noxious Weed●;USA state noxious weed: AZ●, CA●.

Orobanche spp.: USA Federal Noxious Weed●; USA state noxious weed: FL●, PR●.

Symbols: ªaquatic weed; ●terrestrial weed; °weed in seed.

Last updated February 2006.

Distribution

General distribution: Pantemperate, pansubtropical. New World and Old World.

Detailed distribution: North America, Middle America, South America, Europe, Africa, Asia Major, Asia Minor, and Australia.

References

Literature specific to this family: Thieret, J.W. 1971. The genera of Orobanchaceae in the southeastern United States. J. Arnold Arbor. 52:404–434.

General references: Corner, E.J.H. 1976. The seeds of Dicots, esp. vol. 2. Cambridge University Press, New York, Cronquist, A. 1981. An integrated system of classification of flowering plants, 1,262 p. Columbia University Press, New York, Gaertner, J. 1788–1805. De fructibus et seminibus plantarum. The Author, Stuttgart, Goldberg, A. 1986 (dicots) & 1989 (monocots). Classification, evolution, and phylogeny of the familes of Dicotyledons. Smithsonian Contr. Bot. 58 for dicots (314 pp.) & 71 for monocots (74 pp.). [Goldberg's illustrations are reproduced from older publications and these should be consulted], Gunn, C.R. & C.A. Ritchie. 1988. Identification of disseminulesdisseminule:
detachable plant part capable of being disseminated and of propagating, commonly a seed or fruit
listed in the Federal Noxious Weed Act. Techn. Bull. U.S.D.A. 1719:1–313, Gunn, C.R., J.H. Wiersema, C.A. Ritchie, & J.H. Kirkbride, Jr. 1992 & amendments. Families and genera of Spermatophytes recognized by the Agricultural Research Service. Techn. Bull. U.S.D.A. 1796:1–500, LeMaout, E. & J. Decaisne. 1876. A general system of botany, 1,065 p. Longmans, Green, & Co., London, Mabberley, D.J. 1987. The plant-book, 706 p. Cambridge University Press, Cambridge, Martin, A.C. 1946. The comparative internal morphology of seeds. Amer. Midl. Naturalist 36:513–660, Spjut, R.W. 1994. A systematic treatment of fruit types. Mem. New York Bot. Gard. 70:1–182, and Wood, C.E., Jr. 1974. A student's atlas of flowering plants: Some dicotyledons of eastern North America, 120 pp. Harper & Row, New York.

 Embryo:  Aeginetia indica ; Illustration by K. Parker, Kirkbride et al. (2006)
Embryo: Aeginetia indica; Illustration by K. Parker, Kirkbride et al. (2006)
 Embryo:  Boschniakia strobilacea ; Illustration by K. Parker, Kirkbride et al. (2006)
Embryo: Boschniakia strobilacea; Illustration by K. Parker, Kirkbride et al. (2006)
 Fruit:  Christisonia thwaitesii ; Photo by R. Gibbons, USDA APHIS PPQ, Kirkbride et al. (2006)
Fruit: Christisonia thwaitesii; Photo by R. Gibbons, USDA APHIS PPQ, Kirkbride et al. (2006)
 Seeds:  Christisonia thwaitesii ; Photo by R. Gibbons, USDA APHIS PPQ, Kirkbride et al. (2006)
Seeds: Christisonia thwaitesii; Photo by R. Gibbons, USDA APHIS PPQ, Kirkbride et al. (2006)
 Embryo:  Christisonia thwaitesii ; Illustration by K. Parker, Kirkbride et al. (2006)
Embryo: Christisonia thwaitesii; Illustration by K. Parker, Kirkbride et al. (2006)
 Embryo:  Cistanche tubulosa ; Illustration by K. Parker, Kirkbride et al. (2006)
Embryo: Cistanche tubulosa; Illustration by K. Parker, Kirkbride et al. (2006)
 Embryo:  Conopholis americana ; Illustration by K. Parker, Kirkbride et al. (2006)
Embryo: Conopholis americana; Illustration by K. Parker, Kirkbride et al. (2006)
 Embryo:  Epifagus virginiana ; Illustration by K. Parker, Kirkbride et al. (2006)
Embryo: Epifagus virginiana; Illustration by K. Parker, Kirkbride et al. (2006)
 Seeds:  Orobanche aegyptiaca ; Photo by R. Gibbons, USDA APHIS PPQ, Kirkbride et al. (2006)
Seeds: Orobanche aegyptiaca; Photo by R. Gibbons, USDA APHIS PPQ, Kirkbride et al. (2006)
 Seeds:  Orobanche cernua ; Photo by R. Gibbons, USDA APHIS PPQ, Kirkbride et al. (2006)
Seeds: Orobanche cernua; Photo by R. Gibbons, USDA APHIS PPQ, Kirkbride et al. (2006)
 Seeds:  Orobanche hederae ; Photo by R. Gibbons, USDA APHIS PPQ, Kirkbride et al. (2006)
Seeds: Orobanche hederae; Photo by R. Gibbons, USDA APHIS PPQ, Kirkbride et al. (2006)
 Seeds:  Orobanche minor ; Photo by R. Gibbons, USDA APHIS PPQ, Kirkbride et al. (2006)
Seeds: Orobanche minor; Photo by R. Gibbons, USDA APHIS PPQ, Kirkbride et al. (2006)