Malvella leprosa | SeedImages

Species category

Weed

Common name

alkali mallow, dollar-weed, oreja de ratón, scurfyScurf:
Having flakes on the surface.
sida

Diagnostic characters

Planting unit

CarpelCarpel:
One section of a compound ovary.

Shape

OvateOvate:
Egg-shaped with basal end the broadest.
with a divergent radicleRadicle:
The rudimentary root of the embryo, developing into the primary root after emergence from the seed coat.

Size

Length 2.5 mm
Width 2 mm
Thickness 1.5 mm

Color

Gray-brown to brown

Texture

Rough

Other structures

HilumHilum:
The scar on the seed coat at the place of its detachment from the seed stalk (funiculus).
is in cleft. RadicleRadicle:
The rudimentary root of the embryo, developing into the primary root after emergence from the seed coat.
lobe is narrower and longer than cotyledonCotyledon:
The modified storage leaf or pair of leaves of an embryo and seedling (see primary leaf).
lobe.

Identification notes

The carpelsCarpel:
One section of a compound ovary.
are ovateOvate:
Egg-shaped with basal end the broadest.
with the hilumHilum:
The scar on the seed coat at the place of its detachment from the seed stalk (funiculus).
on one end, surrounded by two unequal lobes. The seed is compressed, with one side being narrower than the other.

Noxious weed seed categories

Not listed

AOSA examination list

Included

Nomenclature

Family

Malvaceae

Valid name

Malvella leprosa (Ortega) Krapov.

Synonyms

Sida hederacea (Douglas ex Hook.) Torr. ex A. Gray
Sida leprosa (Ortega) K. Schum.
Sida leprosa (Ortega) K. Schum. var. hederacea (Douglas ex Hook.) K. Schum.

Malvella leprosa. Carpels with the hilum in a cleft, and the radicle lobe is narrower and longer than the cotyledon lobe.	Malvella leprosa. The seeds are oval and laterally wedged, with a flat caruncle covering the hilum.
Malvella leprosa. Carpels with a compressed seed, with one side being narrower than the other.