Lechea stricta |
Lechea intermedia |
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prairie pinweed |
large-pod pinweed, round-fruit pinweed |
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Habit | Herbs, perennial. | Herbs, perennial. | ||||||||||||
Stems | basal produced; flowering erect, 25–45 cm, densely sericeous. |
basal produced; flowering erect to decumbent or arcuate-ascending, (3–)5–60 cm, sericeous. |
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Leaves | of flowering stems alternate or subopposite; blade narrowly oblanceolate, 13–20 × 1.5–3 mm, apex acute, often mucronate, abaxial surface pilose, adaxial glabrous. |
of flowering stems alternate or subopposite; blade elliptic-lanceolate or lanceolate to oblanceolate, 10–25 × 1.5–5 mm, apex acute, abaxial surface hairy on midvein and margins, adaxial glabrous. |
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Pedicels | 1 per axil, 1.6–2 mm. |
1 per axil, 1.5–3 mm. |
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Flowers | calyx 1.6–1.8 mm, outer sepals shorter than inner. |
calyx 1.9–2.3 mm, outer sepals shorter than inner. |
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Capsules | subglobose to broadly ovoid, (1.8–)2–2.5 × 2–2.5 mm, ± equaling calyx. |
broadly ovoid, depressed-globose, or subglobose, 1.8–2 × 1.7–2.1 mm, shorter to ± equaling calyx. |
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Seeds | 3–4. |
4–6, membranous coat gray. |
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Lechea stricta |
Lechea intermedia |
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Phenology | Flowering summer–fall; fruiting fall. | |||||||||||||
Habitat | Sandy, open fields, grasslands, lakeshores, woodland margins | |||||||||||||
Elevation | 100–800 m (300–2600 ft) | |||||||||||||
Distribution |
IA; IL; MI; MN; ND; NE; WI; ON
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CT; IA; IL; MA; ME; MN; MT; ND; NH; NJ; NY; OH; PA; RI; SD; VA; WI; WY; AB; MB; NB; NS; ON; PE; QC; SK
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Discussion | Some individuals of Lechea stricta can be difficult to determine with certainty; the extremes of variation of L. stricta often grade into that of L. intermedia and L. pulchella. (Discussion copyrighted by Flora of North America; reprinted with permission.) |
Varieties 4 (4 in the flora). (Discussion copyrighted by Flora of North America; reprinted with permission.) |
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Key |
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Source | FNA vol. 6, p. 396. | FNA vol. 6, p. 391. | ||||||||||||
Parent taxa | Cistaceae > Lechea | Cistaceae > Lechea | ||||||||||||
Sibling taxa | ||||||||||||||
Subordinate taxa | ||||||||||||||
Name authority | Leggett ex Britton: Bull. Torrey Bot. Club 21: 251. (1894) | Leggett ex Britton: Bull. Torrey Bot. Club 21: 252. (1894) | ||||||||||||
Web links |