3. Tragia ramosa Torr.
Map 1688, Pl.
384 a, b
Stems 10–30(–50)
cm long, prostrate or loosely ascending, not twining or rarely slightly twining
(but not regularly climbing in adjacent vegetation), pubescent with moderate to
dense, short, mostly curved, softer, nonstinging hairs and moderate longer,
stiff, spreading, stinging hairs. Leaves short- to less commonly
long-petiolate, the stipules 1–4 mm long. Leaf blades 1–4 cm long, linear to
narrowly oblong or lanceolate-triangular (those of the lowermost leaves
sometimes ovate with a cordate base but these withered or absent by flowering),
rounded to truncate at the base, rounded or more commonly angled to a sharply
or occasionally bluntly pointed tip, the surfaces pubescent with sparse to
moderate nonstinging hairs and usually moderate stinging hairs. Inflorescences
with 1(2) pistillate flower(s) at the base below 2–10(–20) staminate nodes.
Staminate flowers with the bract 1–2 mm long; the flower stalk 0.7–2.0 mm long,
the persistent lower portion 0.4–1.5 mm long; the calyx 3- or 4-lobed, 1.0–2.2
mm long; the stamens(2)3 or 4. Pistillate flowers with the bract 1.5–2.0 mm
long; the flower stalk 1.0–1.5 mm long at flowering, elongating to 2.0–2.5 mm
long at fruiting; the calyx (5)6-lobed, 0.8–2.5 mm long at flowering (shorter
than the pistil), enlarging to 1.5–3.0 mm long at fruiting; the styles fused
toward the base less than 1/3 of their length, the stigmas nearly smooth.
Fruits 3–4 mm long, 6–8 mm in diameter, moderately pubescent with mostly
stinging hairs. Seeds 2.5–3.5 mm long. 2n=44. June–September.
Scattered in the
western half of the Ozark Division, uncommon farther east (southwestern U.S. east to Missouri,
Arkansas, and Texas;
Mexico).
Limestone and dolomite glades; also rarely dry pastures, ditches, and
roadsides.
As noted above,
this species was first documented from Missouri
by Miller and Webster (1967), who redetermined materials that Steyermark (1963)
had referred to T. urticifolia. Tragia ramosa tends to occur in very
droughty exposed habitats and tends to appear smaller and grayer than does T.
betonicifolia. However, both species are variable in overall appearance,
and it is better to depend on the flower characters to separate them than the
overlapping trends in vegetative differences.