Lechea stricta
Lechea torreyi
prairie pinweed
Piedmont pinweed
basal produced; flowering erect, 25–45 cm, densely sericeous.
basal produced; flowering erect, 30–50 cm, densely sericeous.
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 to subopposite;
blade linear to narrowly elliptic, 10–20 × 1–1.5 mm, apex acute, abaxial surface pilose, adaxial glabrous.
1 per axil, 1.6–2 mm.
1 per axil, 0.5–1.5 mm.
calyx 1.6–1.8 mm, outer sepals shorter than inner.
calyx 1.8–2.1 mm, outer sepals shorter than inner.
subglobose to broadly ovoid, (1.8–)2–2.5 × 2–2.5 mm, ± equaling calyx.
ovoid, 1.5–1.7 × 1.4–1.5 mm, shorter than or ± equaling calyx, with persistent stigma.
3–4.
3–6.
Lechea stricta
Lechea torreyi
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 2 (2 in the flora).
(Discussion copyrighted by Flora of North America; reprinted with permission.)
1. Panicles loosely flowered; inner sepals brown in fruit, sometimes with some rust coloration; seeds 4–6 1 6a. Lechea torreyi var. torreyi | → 1 |
1. Panicles congested; inner sepals rust colored in fruit; seeds 3 | var. congesta |
IL Wildflowers
MI Flora
MN Wildflowers
WildflowerSearch
iNaturalist
USDA Plants Database
