Thelypodium sagittatum |
Thelypodium milleflorum |
|
---|---|---|
many-flowered thelypody |
||
Habit | Plants biennial, glabrous except for petioles. | |
Stems | hollow; (1.8)4.5–13(21) dm. |
|
Basal leaves | oblong or occasionally ovate or lanceolate; (3.8)6–23(28) × (0.9)2–6.5(10) cm; margins dentate or sinuate; petioles (1)1.8–9.5(13) cm, ciliate. |
|
Cauline leaves | lower similar to basal; middle and upper cauline leaves lanceolate, bases not auriculate; margins dentate or entire, petiolate. |
|
Inflorescences | densely flowered, fruiting pedicels erect distally, curved upwards; stout; (1.5)2.5–5(7) mm. |
|
Flowers | sepals narrowly oblong; erect; (4)4.5–8(9) × 1–2 mm, white, sometimes tipped with green; petals oblanceolate to spatulate; (7)9–15(16) × 1–2 mm, white; claws (3)3.5–5.5(6) mm; widest at base; filaments subequal; anthers linear to narrowly oblong, 2.5–4.5(6) mm, circinately coiled, apiculate, nectar glands confluent; ovules 50–78 per ovary; styles (0.5)0.7–1.5(3) mm; stigmas entire; gynophore 1–4(6) mm. |
|
Fruits | erect, subappressed to rachis; terete; somewhat tortuous, torulose; (1.8)3.3–8(10) cm × (0.7)1–1.5(1.8) mm. |
|
Seeds | (0.7)1–1.5(2) × 0.5–0.7(1) mm. |
|
2n | =26. |
|
Thelypodium sagittatum |
Thelypodium milleflorum |
|
Distribution | ||
Discussion | Sand dunes, sagebrush, desert shrub communities. Flowering May–Jul. 100–1700 m. BR, Col, Owy. CA, ID, NV, WA; southeast to UT. Native. |
|
Source | Flora of Oregon, volume 2 draft Ihsan Al-Shehbaz |
|
Sibling taxa | ||
Synonyms | Thelypodium laciniatum var. milleflorum | |
Web links |
|