Lechea racemulosa
Lechea mensalis
Illinois pinweed
Chisos Mountain pinweed, mountain pinweed
basal produced; flowering erect, 25–40 cm, sparsely sericeous.
basal produced; flowering erect, 15–25 cm, sericeous.
of flowering stems opposite to subopposite;
blade linear-lanceolate to narrowly oblanceolate, 10–20 × 1–1.5 mm, apex acute, usually indurate, abaxial surface sparsely pilose on midvein and margins, adaxial glabrous.
of flowering stems alternate;
blade linear, 8–15 × 0.7–1.2 mm, apex acute to rounded, abaxial surface sparsely pilose on midvein and margins, adaxial glabrous.
1 per axil, 1–2 mm.
1 per axil, 1.5–2 mm.
calyx 1.8–2 mm, indurate, shiny, yellow-brown basally in fruit, outer sepals shorter than or equaling inner.
calyx 1.9–2 mm, outer sepals longer than inner.
ellipsoid to ovoid, 1.5–2 × 1–1.2 mm, ± equaling to slightly longer than calyx.
ovoid, 1.6–1.8 × 1.2–1.3 mm, ± equaling calyx.
(1–)2(–3).
1(2).
Lechea racemulosa
Lechea mensalis
Of conservation concern.
Lechea mensalis is known from open woodlands dominated by species of oak and juniper at only two locations in the United States: the Guadalupe Mountains of southeastern New Mexico and adjacent Texas and the Chisos Mountains of west Texas; it also occurs in adjacent Coahuila, Mexico.
(Discussion copyrighted by Flora of North America; reprinted with permission.)
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