Linum vernale

Wooton

Bull. Torrey Bot. Club 25: 452. 1898.

Common names: Chihuahuan or red-eye flax
Treatment appears in FNA Volume 12. Treatment on page 388. Mentioned on page 379, 387.

Herbs, annual, 10–50 cm, glabrous. Stems ascending to erect, branched at base and in inflorescence. Leaves alternate or proximal leaves opposite, divergent to ascending; stipular glands usually present, sometimes absent; blade linear, 8–17 × 0.5–1.3 mm, margins entire, with widely spaced glandular-hairs, apex acute. Inflorescences open panicles. Pedicels 2–12 mm. Flowers: sepals persistent, lanceolate to narrowly lanceolate, 4–7.5 mm, margins narrowly scarious or not, inner sepals abundantly glandular-toothed, outer sparsely toothed, apex narrowly acute; petals yellow-orange to salmon with maroon base, broadly obovate, 10–17 mm; stamens 4–8 mm; anthers 1–1.8 mm; staminodia absent; styles connate to within 0.2 mm of apex, 4–8 mm; stigmas capitate. Capsules ovoid, 3–4 × 2.5–3.2 mm, apex depressed, dehiscing completely into 5, 2-seeded segments (very easily crushed), segments persistent on plant, false septa incomplete, proximal margins terminating in loose fringe. Seeds 2–2.8 × 0.9–1.3 mm. 2n = 30.


Phenology: Flowering Mar–Sep.
Habitat: Limestone soils, bajadas, openings in scrublands and woodlands.
Elevation: 1200–2400 m.

Distribution

V12 785-distribution-map.jpg

N.Mex., Tex., Mexico (Chihuahua), Mexico (Coahuila)

Discussion

Corollas of Linum vernale are broadly bowl-shaped and yellow-orange to salmon with a maroon base. The filaments and styles are pale pink, and the stigmas are dark maroon. The pollen is bright yellow; on herbarium specimens, the anthers appear to be maroon.

Selected References

None.

Lower Taxa

None.

"wider" is not a number.

... more about "Linum vernale"
0.1 cm1 mm <br />0.001 m <br /> (0.18 cm1.8 mm <br />0.0018 m <br />) +
depressed +  and acute +
Nancy R. Morin +
Wooton +
Linopsis +
0.8 cm8 mm <br />0.008 m <br /> (1.7 cm17 mm <br />0.017 m <br />) +
glandular-toothed +  and entire +
awl--shaped;spatulate;awl--shaped;spatulate;obovate;oblong;elliptic;oblanceolate;lanceolate;linear-oblanceolate;linear-lanceolate;linear +
0.05 cm0.5 mm <br />5.0e-4 m <br /> (0.13 cm1.3 mm <br />0.0013 m <br />) +
0.3 cm3 mm <br />0.003 m <br /> (0.4 cm4 mm <br />0.004 m <br />) +
0.25 cm2.5 mm <br />0.0025 m <br /> (0.32 cm3.2 mm <br />0.0032 m <br />) +
divided +
Chihuahuan or red-eye flax +
N.Mex. +, Tex. +, Mexico (Chihuahua) +  and Mexico (Coahuila) +
1200–2400 m. +
adnate +  and adherent +
spheric +
Limestone soils, bajadas, openings in scrublands and woodlands. +
glandular-toothed +
whorled +, opposite +  and alternate +
not +  and glandular-toothed +
not +  and scarious +
extrastaminal +
apical-axile +, axile +  and placentation +
not +  and articulated +
0.2 cm2 mm <br />0.002 m <br /> (1.2 cm12 mm <br />0.012 m <br />) +
convolute +  and imbricate +
adnate +  and adherent +
yellow-orange;salmon +
coherent +  and distinct +
obovate +
1 cm10 mm <br />0.01 m <br /> (1.7 cm17 mm <br />0.017 m <br />) +
Flowering Mar–Sep. +
multiporate +  and tricolpate +
divergent +, opposite +  and alternate +
Bull. Torrey Bot. Club +
mucilaginous +
0.2 cm2 mm <br />0.002 m <br /> (0.28 cm2.8 mm <br />0.0028 m <br />) +
lenticular +
0.09 cm0.9 mm <br />9.0e-4 m <br /> (0.13 cm1.3 mm <br />0.0013 m <br />) +
persistent +
lanceolate +  and narrowly lanceolate +
unequal +
0.4 cm4 mm <br />0.004 m <br /> (0.75 cm7.5 mm <br />0.0075 m <br />) +
0.4 cm4 mm <br />0.004 m <br /> (0.8 cm8 mm <br />0.008 m <br />) +
ascending +  and erect +
ridged +  and terete +
clavate +, linear +  and capitate +
0.4 cm4 mm <br />0.004 m <br /> (0.8 cm8 mm <br />0.008 m <br />) +
Mesyniopsis +
Linum vernale +
Linum sect. Linopsis +
species +
adnate +  and adherent +
18] +, [15 +  and 13 +