ITP Logo

Dalea purpurea

Species category

Flower, Weed

Common name

purple prairie clover

Diagnostic characters

Planting unit

True seedTrue seed:
A mature fertilized ovule consisting of an embryo, with or without and external food reserve (e.g., endosperm) enclosed by the testa.

Shape

Mitten

Size

  • Length 1.5–2 mm
  • Width 1.4–1.9 mm
  • Thickness 0.8–1 mm

Color

Brown and yellow

Texture

Shiny

Other structures

HilumHilum:
The scar on the seed coat at the place of its detachment from the seed stalk (funiculus).
 is located between the radicleRadicle:
The rudimentary root of the embryo, developing into the primary root after emergence from the seed coat.
 and cotyledonCotyledon:
The modified storage leaf or pair of leaves of an embryo and seedling (see primary leaf).
 lobes.

Identification notes

Seeds in a calyx are often present; calyx is hairy. The axes of the radicleRadicle:
The rudimentary root of the embryo, developing into the primary root after emergence from the seed coat.
 and cotyledonCotyledon:
The modified storage leaf or pair of leaves of an embryo and seedling (see primary leaf).
 lobes are nearly at right angles to each other.

Noxious weed seed categories

Not listed

AOSA examination list

Not included

Nomenclature

Family

Fabaceae

Valid name

Dalea purpurea Vent.

Dalea purpurea. Seeds are often in a hairy calyx.
Dalea purpurea. Seeds are often in a hairy calyx.
Dalea purpurea. Seeds with axes of the radicle and cotyledon lobes that are nearly at right angles to each other. 
Dalea purpurea. Seeds with axes of the radicle and cotyledon lobes that are nearly at right angles to each other.