Thelypodium integrifolium |
Thelypodium eucosmum |
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entire-leaved thelypody |
arrowleaf thelypody |
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Habit | Plants biennial, glabrous; caudices naked. | Plants biennial or rarely short-lived perennial, glabrous except petioles, glaucous; caudices naked. |
Stems | straight; (2)4.5–17(28) dm. |
straight, 2–10 dm. |
Basal leaves | oblong, lanceolate, oblanceolate to obovate; (3.7)5–31(54) × (1.2)1.6–7.8(14) cm; margins entire or dentate; petioles (0.5)1.2–10(15) cm, not ciliate. |
oblanceolate, oblong, lanceolate, or rarely ovate; (2.8)3.5–8.8(11) × (0.7)1–2.5(3.5) cm; margins entire or sinuate; petioles ciliate. |
Cauline leaves | linear to linear-lanceolate; (1)2.2–8.3(19.5) × (0.2)0.3–1.1(2.5) cm, bases cuneate to attenuate; margins entire, sessile. |
lanceolate to oblong, 1.8–4.5(6) × 0.5–1.6(2.4) cm, bases amplexicaul to auriculate, sessile. |
Inflorescences | densely flowered, fruiting pedicels ascending, divaricate, or reflexed; (2)3–9(13) mm. |
lax, fruiting pedicels horizontal to divaricate; (2.5)3–5.5(6.5) mm. |
Flowers | sepals linear; erect; (3)3.5–5.5(7.5) mm; petals spatulate to oblanceolate; (4.5)6–9(13) × (0.5)0.8–1.5(2. 3) mm, white, lavender, or purple; claws (2)3–4.5(7) mm; petal margins not crisped; filaments subequal; anthers linear to narrowly oblong, not circinately coiled, nectar glands lateral; ovules 14–40 per ovary; styles cylindrical or subclavate, 0.5–1.3(3.2) mm; stigmas entire; gynophore 1–2(5.5) mm. |
buds oblong-linear; sepals linear-oblong; erect, 5–7(8) mm; petals spatulate to oblanceolate; (6.6)7.5–10(11.5) × 1–1.8(2) mm, purple to magenta; claws (3)3.5–5(5.5) mm; narrowest at base; petal margins not crisped; filaments subequal; (4.5)6–9(10) mm; anthers exserted, linear to narrowly oblong, circinately coiled after dehiscence, nectar glands confluent; ovules 44–58 per ovary; styles cylindrical or rarely subclavate, 0.5–1.5(2) mm; stigmas entire; gynophore (1)2.5–6(7) mm. |
Fruits | terete, strongly incurved or rarely straight; (0.7)1.3–3.5(8) cm × 1–1.3(2) mm. |
terete, torulose; (2)2.4–5(6.5) cm × 0.7–1(1.3) mm. |
Seeds | (1)1.2–2(2.3) × 0.7–1(1.3) mm. |
0.7–1.5 × 0.5–0.8 mm. |
Thelypodium integrifolium |
Thelypodium eucosmum |
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Distribution | ||
Discussion | Western United States. 5 subspecies; 2 subspecies treated in Flora. |
Shady slopes and canyons, pinyon-juniper and oak-woodland communities, streamsides, riverbanks. Flowering May–Jul. 300–1600 m. BW, Lava. Native. Endemic. This Oregon endemic is currently known only from Baker, Grant, and Wheeler counties. |
Source | Flora of Oregon, volume 2, page 518 Ihsan Al-Shehbaz |
Flora of Oregon, volume 2, page 517 Ihsan Al-Shehbaz |
Sibling taxa | ||
Subordinate taxa | ||
Web links |
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