Lechea stricta

Leggett ex Britton

Bull. Torrey Bot. Club 21: 251. 1894.

Common names: Prairie pinweed
Endemic
Treatment appears in FNA Volume 6. Treatment on page 396. Mentioned on page 391.

Herbs, perennial. Stems: basal produced; flowering erect, 25–45 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. Pedicels 1 per axil, 1.6–2 mm. Flowers: calyx 1.6–1.8 mm, outer sepals shorter than inner. Capsules subglobose to broadly ovoid, (1.8–) 2–2.5 × 2–2.5 mm, ± equaling calyx. Seeds 3–4.


Phenology: Flowering summer–fall; fruiting fall.
Habitat: Sandy, open fields, grasslands, lakeshores, woodland margins
Elevation: 100–800 m

Distribution

V6 746-distribution-map.jpg

Ont., Ill., Iowa, Mich., Minn., Nebr., N.Dak., Wis.

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.

Selected References

None.

Lower Taxa

None.

"dm" is not declared as a valid unit of measurement for this property.

... more about "Lechea stricta"
mucronate +  and acute +
David E. Lemke +
Leggett ex Britton +
bracteolate +  and 1-3-flowered +
overwintering +
1.3 cm13 mm <br />0.013 m <br /> (2 cm20 mm <br />0.02 m <br />) +
oblanceolate +
0.15 cm1.5 mm <br />0.0015 m <br /> (0.3 cm3 mm <br />0.003 m <br />) +
0.16 cm1.6 mm <br />0.0016 m <br /> (0.18 cm1.8 mm <br />0.0018 m <br />) +
0.18 cm1.8 mm <br />0.0018 m <br /> (0.2 cm2 mm <br />0.002 m <br />) +
0.2 cm2 mm <br />0.002 m <br /> (0.25 cm2.5 mm <br />0.0025 m <br />) +
subglobose;broadly ovoid +
0.2 cm2 mm <br />0.002 m <br /> (0.25 cm2.5 mm <br />0.0025 m <br />) +
membranous +
Prairie pinweed +
Ont. +, Ill. +, Iowa +, Mich. +, Minn. +, Nebr. +, N.Dak. +  and Wis. +
100–800 m +
connate +  and distinct +
loculicidal +
Sandy, open fields, grasslands, lakeshores, woodland margins +
congested +  and loose +
racemose +  and paniculate +
sessile +  and petiolate +
subopposite +  and alternate +
undulate +  and revolute +
ovate;obovate +
6-12-carpellate +, 5-carpellate +, 3-carpellate +  and 2-carpellate +
crassinucellate +  and bitegmic +
orthotropous +
0.16 cm1.6 mm <br />0.0016 m <br /> (0.2 cm2 mm <br />0.002 m <br />) +
crumpled +  and imbricate +
green +  and maroon +
distinct +
Flowering summer–fall +  and fruiting fall. +
Bull. Torrey Bot. Club +
compressed +  and ovoid +
persistent +
25 cm250 mm <br />0.25 m <br /> (45 cm450 mm <br />0.45 m <br />) +
persistent +
fimbriate-plumose +
sessile +  and petiolate +
0 cm0 mm <br />0 m <br /> (0.05 cm0.5 mm <br />5.0e-4 m <br />) +
Lechidium +
Lechea stricta +
species +
glabrous +, villous +  and sericeous +