Thelypodium howellii |
Thelypodium howellii ssp. spectabilis |
|
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Howell's thelypody |
spectacular thelypody |
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Habit | Plants biennial or rarely short-lived perennial, glabrous except petioles; caudices naked. | |
Stems | straight, 1–8(9.3) dm. |
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Basal leaves | oblanceolate, spatulate, oblong, or lanceolate, 2–10(13.5) × 1–2.3(4) cm; margins lyrate, dentate, or entire; petioles 0.5–2 cm, ciliate. |
oblong-lanceolate to oblong; entire or repand. |
Cauline leaves | lanceolate, linear, or oblong; (0.8)1–9.7(14.5) × 0.2–1(3) cm, bases amplexicaul to sagittate, sessile. |
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Inflorescences | lax, fruiting pedicels straight, ascending to divaricate; (2.5)3.5–8(14.5) mm. |
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Flowers | buds ovate to lanceolate; sepals linear or lanceolate; erect; (3.5)5–8.5(11.5) mm; petals linear, oblanceolate to spatulate; (6)9–16.5(22) × (0.5)0.8–2.7(3) mm, lavender to purple; claws (2.5)4–7(11) mm; narrowest at base; petal margins partially crisped; median filaments free or united; anthers included, linear; (1.5)2–4(5.5) mm, not circinately coiled, nectar glands confluent, subtending bases of all stamens; ovules 22–40 per ovary; styles (0.5)1–2.7(4.3) mm; stigmas entire; gynophore (0.2)0.5–1(3.5) mm. |
|
Fruits | terete; straight and forming a straight line with pedicel, slightly torulose; (1.5)2–6.2(8.2) cm × 1–1.3(2) mm. |
(1.8)3–6.5(8.2) cm. |
Seeds | (1)1.2–1.7(2) × 0.5–0.7 mm. |
|
Petals | spatulate or rarely oblanceolate; (1.2)1.5–2.7(3) mm wide; median filaments free. |
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2n | =26. |
=26. |
Thelypodium howellii |
Thelypodium howellii ssp. spectabilis |
|
Distribution | ||
Discussion | 2 subspecies. |
Desert shrub communities, alkaline ground. Flowering Jun–Jul. 900–1100 m. BR, BW. Native. Endemic to Oregon. |
Source | Flora of Oregon, volume 2, page 517 Ihsan Al-Shehbaz |
Flora of Oregon, volume 2, page 518 Ihsan Al-Shehbaz |
Sibling taxa | ||
Subordinate taxa | ||
Synonyms | Thelypodium howellii var. spectabilis | |
Web links |