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Thelypodium sagittatum (Nutt. ex Torr. & A. Gray) Endl. ex Walp.
Life   Plantae   Dicotyledoneae   Brassicaceae   Thelypodium

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FamilyScientific name @ source (records)
Apidae  Bombus fervidus @ BBSL (2)

Bombus huntii @ BBSL (2)
Pucciniaceae  Puccinia subnitens @ BPI (1)

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Following modified from Plants Database, United States Department of Agriculture
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Following modified from Flora of North America
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FNA | Family List | FNA Vol. 7 | Brassicaceae | Thelypodium

13. Thelypodium sagittatum (Nuttall) Endlicher in W. G. Walpers, Repert. Bot. Syst. 1: 172. 1842.

Streptanthus sagittatus Nuttall, J. Acad. Nat. Sci. Philadelphia 7: 12. 1834; Pachypodium sagittatum (Nuttall) Nuttall; Thelypodiopsis nuttallii (S. Watson) O. E. Schulz; T. sagittata (Nuttall) O. E. Schulz; T. torulosa (A. Heller) O. E. Schulz; Thelypodium nuttallii S. Watson; T. torulosum A. Heller

Biennials or perennials; (short-lived); sometimes glau-cous, glabrous throughout or sparsely to densely pubescent. Stems branched often proximally and distally, (2-)3-8 (-12.5) dm, (glabrous or pubescent). Basal leaves: petiole (1-)2-8(-14) cm, ciliate; blade usually oblanceolate to ovate, rarely oblong, (2-)6.5-20(-29) cm × 10-42(-50) mm, margins entire, (surfaces glabrous or pubescent). Cauline leaves (ascending); sessile; blade lanceolate to oblong-lanceolate, (0.8-)1.6-8.5(-14) cm × 2-13(-28) mm, (base amplexicaul to sagittate), margins entire, (surfaces glabrous or pubescent). Racemes sometimes corymbose, lax or dense, elongated or not in fruit, (flower buds ovate to lanceolate). Fruiting pedicels horizontal to divaricate, often curved upward, stout or slender, (2.5-)3.5-11(-20) mm, not flattened at base. Flowers: sepals erect, ovate to oblong, (2.5-)3-6(-10) × (1-)1.5-2(-2.5) mm; petals white or lavender to purple, oblanceolate to spatulate or linear, (5-)7-14(-19) × (0.5-)1-3(-4) mm, margins slightly crisped between blade and claw, claw differentiated from blade, [slender, (2-)3-6.5(-10) mm, narrowest at base]; nectar glands confluent and subtending bases of stamens, sometimes only lateral; filaments tetradynamous, median pairs 3-5.5(-8) mm, lateral pair (2-)2.5-4.5(-7) mm; anthers included or partially exserted, oblong, (1.5-)2-3.2(-5) mm, not circinately coiled; gynophore (stout), 0.5-1(-2) mm. Fruits erect, torulose, straight or slightly incurved (forming arc with pedicel), usually terete, rarely 4-angled, 1-5.3(-6.9) cm × (0.5-)0.8-1(-1.2) mm; ovules 20-62 per ovary; style cylindrical, 0.5-1.5(-3.3) mm. Seeds (flattened), (0.7-)1-1.3(-1.5) × 0.5-0.7(-1) mm.

Subspecies 2 (2 in the flora): w United States.

Updated: 2018-02-19 15:00:37 gmt
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