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prairie pinweed

beach or hoary or seaside pinweed, beach pinweed

Habit Herbs, perennial. Herbs, perennial.
Stems

basal produced; flowering erect, 25–45 cm, densely sericeous.

basal produced; flowering erect or procumbent to ascending, 15–35 cm, densely 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 whorled;

blade narrowly elliptic to oblanceolate, 7–25 × 1.2–4 mm, apex acute, abaxial surface pilose, adaxial glabrous or sparsely pilose.

Pedicels

1 per axil, 1.6–2 mm.

1 per axil, 1–1.5 mm.

Flowers

calyx 1.6–1.8 mm, outer sepals shorter than inner.

calyx 1.6–2.1 mm, outer sepals shorter than to ± equaling inner.

Capsules

subglobose to broadly ovoid, (1.8–)2–2.5 × 2–2.5 mm, ± equaling calyx.

subglobose to broadly ovoid, 1.3–2.1 × 1.5–1.9 mm, shorter than calyx.

Seeds

3–4.

2–5(–6).

Lechea stricta

Lechea maritima

Phenology Flowering summer–fall; fruiting fall.
Habitat Sandy, open fields, grasslands, lakeshores, woodland margins
Elevation 100–800 m (300–2600 ft)
Distribution
from FNA
IA; IL; MI; MN; ND; NE; WI; ON
[WildflowerSearch map]
[BONAP county map]
from FNA
CT; DE; MA; MD; ME; NC; NH; NJ; NY; RI; VA; NB; PE
[WildflowerSearch map]
[BONAP county map]
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 3 (3 in the flora).

The varieties of Lechea maritima show appreciable overlap in many vegetative features but can be readily distinguished by the characters used here.

(Discussion copyrighted by Flora of North America; reprinted with permission.)

Key
1. Flowering stems mostly branching distal to middle; outer sepals nearly equaling inner
var. subcylindrica
1. Flowering stems mostly branching proximal to middle; outer sepals shorter than inner
→ 2
2. Seeds 3–4(–5), weakly 3-sided or 2-sided and convex; stems erect to procumbent, 1–2.5 mm diam.; sepals usually strongly maroon tinged, sometimes brown.
var. maritima
2. Seeds 2(–3), 2-sided and flat or convex; stems procumbent to ascending, 2–4 mm diam.; sepals usually brown, sometimes maroon tinged.
var. virginica
Source FNA vol. 6, p. 396. FNA vol. 6, p. 393.
Parent taxa Cistaceae > Lechea Cistaceae > Lechea
Sibling taxa
L. cernua, L. deckertii, L. divaricata, L. intermedia, L. lakelae, L. maritima, L. mensalis, L. minor, L. mucronata, L. pulchella, L. racemulosa, L. san-sabeana, L. sessiliflora, L. tenuifolia, L. torreyi
L. cernua, L. deckertii, L. divaricata, L. intermedia, L. lakelae, L. mensalis, L. minor, L. mucronata, L. pulchella, L. racemulosa, L. san-sabeana, L. sessiliflora, L. stricta, L. tenuifolia, L. torreyi
Subordinate taxa
L. maritima var. maritima, L. maritima var. subcylindrica, L. maritima var. virginica
Synonyms L. minor var. maritima
Name authority Leggett ex Britton: Bull. Torrey Bot. Club 21: 251. (1894) Leggett ex Britton: Catal. Fl. New Jersey, 13. (1881)
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