Hairy pinweed

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Hairy pinweed

Hairy pinweed

Hairy pinweed flowers

Hairy pinweed

Hairy pinweed

Hairy pinweed

Hairy pinweed

Hairy pinweed leaves

Morphology

Stem

Stems of 2 forms; basal stems produced late in growing season, prostrate, procumbent, or ascending, overwintering; flowering stems produced in spring, ascending to erect, not overwintering, densely villous.

Leaves

Leaves of basal stems ovate-elliptic; leaves of flowering stems opposite or whorled, petiolate; blade elliptic to ovate, .5 to 1.2 inch long, .12 to .16 inch wide, tip acute to obtuse, lower surface villous on margins and midvein, upper surface glabrous.

Inflorescence

Panicles, mostly terminal.

Flower

Pedicels short; outer sepals linear to oblong-elliptic, slightly shorter than to slightly longer than inner sepals, .07 to .08 inch, inner sepals ovate to nearly round, .06 to .08 inch; petals 3, dark red, oblong to oblanceolate, .03 to .05 inch, shorter than sepals; stamens mostly 5-15; stigmas 3, plumose.

Fruit

Capsules subglobose to obovoid, .05 to .06, as long as persistent calyx; seeds 3, brown or yellowish brown, ca. .04 inch.

Ecology

Habitat

Dry, sandy tallgrass and sand prairies, oak-hickory woodlands.

Distribution

Harvey, McPherson, Reno, and Rice Counties in central Kansas and Cherokee County in southeast Kansas.

Additional Notes

Synonyms

Alternative scientific names that have been used for this plant.