Lechea stricta |
Lechea tenuifolia |
|
---|---|---|
prairie pinweed |
narrow-leaf pinweed |
|
Habit | Herbs, perennial. | Herbs, biennial or perennial. |
Stems | basal produced; flowering erect, 25–45 cm, densely sericeous. |
basal produced; flowering erect, 12–40 cm, sparsely sericeous. |
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 opposite or whorled; blade linear to narrowly oblanceolate, 7–20 × 0.5–1.5 mm, apex rounded, abaxial surface sparsely pilose on midvein and margins, adaxial glabrous. |
Pedicels | 1 per axil, 1.6–2 mm. |
1 per axil, 0.5–1.5 mm. |
Flowers | calyx 1.6–1.8 mm, outer sepals shorter than inner. |
calyx 1.6–1.9 mm, outer sepals equaling or longer than inner. |
Capsules | subglobose to broadly ovoid, (1.8–)2–2.5 × 2–2.5 mm, ± equaling calyx. |
secund or not, broadly ovoid, 1.4–1.7 × 1.3–1.5 mm, shorter than or ± equaling calyx. |
Seeds | 3–4. |
2–3(–5). |
Lechea stricta |
Lechea tenuifolia |
|
Phenology | Flowering summer–fall; fruiting fall. | Flowering summer–fall; fruiting fall. |
Habitat | Sandy, open fields, grasslands, lakeshores, woodland margins | Dry, sandy or gravelly soil in openings or along margins of oak woodlands and oak-pine forests |
Elevation | 100–800 m (300–2600 ft) | 100–300 m (300–1000 ft) |
Distribution |
IA; IL; MI; MN; ND; NE; WI; ON
|
AL; AR; CT; DE; GA; IA; IL; IN; KS; KY; LA; MA; MD; ME; MN; MO; MS; NC; NE; NH; NJ; NY; OH; OK; PA; RI; SC; TN; TX; VA; VT; WI; WV
|
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.) |
|
Source | FNA vol. 6, p. 396. | FNA vol. 6, p. 396. |
Parent taxa | Cistaceae > Lechea | Cistaceae > Lechea |
Sibling taxa | ||
Synonyms | L. tenuifolia var. occidentalis | |
Name authority | Leggett ex Britton: Bull. Torrey Bot. Club 21: 251. (1894) | Michaux: Fl. Bor.-Amer. 1: 77. (1803) |
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