Linum virginianum
Linum schiedeanum
Virginia yellow flax, woodland flax, woodland yellow flax
Schied's flax, Schiede's flax
erect, branches 1–several from base, unbranched proximal to inflorescence.
erect or spreading, branching at base and in inflorescence.
proximal 4–10 pairs opposite, distal alternate, erect to spreading;
stipular glands absent;
blade of proximal leaves spatulate, central and distal elliptic, oblanceolate, or obovate, 15–25 × 3–7 mm, margins entire, not ciliate, apex acute to apiculate.
proximal in whorls of 4, distal alternate, or mostly whorled or mostly alternate, spreading to ascending;
stipular glands present;
blade lanceolate to oblanceolate, 10–20 × 2–6 mm, margins entire, of distal leaves ciliate, apex deltate-acute to obtuse.
corymbs.
panicles;
bracts ciliate.
1–10 mm.
0–1 mm.
sepals persistent, lanceolate-ovate, inner shorter, broader, thinner than outer, outer sepals 2–4 mm, margins not scarious, inner sepals usually with a few small, sessile glands along margin distal to middle, rarely eglandular, outer ones entire, apex acute to acuminate;
petals yellow, obovate (sometimes notched at apex), 3–5.5 mm;
stamens 1.2–3 mm;
anthers 0.5–1 mm;
staminodia absent;
styles distinct, 1–2 mm;
stigmas capitate.
sepals persistent, lanceolate, 2–3.5 mm, margins of inner sepals scarious, glandular-toothed, apex acute;
petals lemon yellow, oblanceolate to narrowly obcordate, 2.5–6 mm;
stamens 2–5 mm;
anthers 0.3–0.7 mm;
staminodia usually present, sometimes absent;
styles distinct, 1.6–3 mm;
stigmas capitate.
globose, carpels flattened or ± concave abaxially, 1.3–1.8 × 2–2.5 mm, apex depressed, dehiscing freely into 10, 1-seeded segments, segments falling freely, false septa nearly complete, proximal margins usually sparsely and inconspicuously few-ciliate.
broadly ovoid, 1.5–2.5 × 2–2.5 mm, apex sharp-pointed (easily crushed), readily dehiscing into 10, 1-seeded segments, segments falling freely, false septa rudimentary, margins of true septa usually ciliate.
1–1.5 × 0.6–0.9 mm.
1–1.5 × 0.6–1 mm.
= 36.
= 36.
Linum virginianum
Linum schiedeanum
Linum virginianum lacks prominent marginal teeth on the inner sepals, thus distinguishing it from L. striatum. It has a less elongate inflorescence and lacks the ribbed branchlets found in L. striatum (C. M. Rogers 1984). The corollas of L. virginianum are nearly rotate; all parts of the flower are yellow except the brownish anthers. Its capsules shatter readily and often are absent on herbarium sheets.
(Discussion copyrighted by Flora of North America; reprinted with permission.)
Linum schiedeanum has yellow, broadly bowl-shaped corollas, yellow stamens, and yellow styles and stigmas. The styles are broadly incurved, following the line of the petals, and are held outside the ring of stamens. Staminodia in L. schiedeanum are low, deltoid, and usually two between adjacent stamens, sometimes one or none. J. R. McDill (2009) reported that L. schiedeanum formed a group (L. schiedeanum group) with four other species with whorled leaves occuring from the Guadalupe Mountains of western Texas south to Veracruz. C. M. Rogers (1984) noted that a compact form of L. schiedeanum from sunny areas might warrant more study.
(Discussion copyrighted by Flora of North America; reprinted with permission.)
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