Tragia ramosa
Tragia leptophylla
branch noseburn, branch or desert or common noseburn, desert noseburn, desert tragia
fine-leaf noseburn
erect to trailing, dark green to light green, apex rarely flexuous.
erect, brownish red to maroon-green, apex never flexuous.
petiole 2–20 mm;
blade linear-lanceolate to narrowly ovate, 1–4 × 0.5–2 cm, base truncate to weakly cordate, margins serrate, apex acute.
petiole 0.5–2 mm;
blade acicular to narrowly oblong, 1–6 × 0.2–0.6 cm, base acute to subcuneate, margins usually entire, sometimes serrulate, apex acute to obtuse.
terminal (often appearing leaf opposed), glands few, sessile, staminate flowers 2–20 per raceme; staminate bracts 1.5–2 mm.
terminal (appearing leaf opposed) or axillary, glands absent, staminate flowers 2–3(–5) per raceme; staminate bracts 2–2.5 mm.
staminate 0.7–2 mm, persistent base 0.4–1.5 mm; pistillate 2–2.5 mm in fruit.
staminate 1–2 mm, persistent base 0.5–0.8 mm, pistillate 2–3 mm in fruit.
sepals 3–4, green, 1–2.2 mm;
stamens 3–6(–10), filaments 0.3–1 mm.
sepals 3–4(–5), green, 1–2.5 mm;
stamens 3–4, filaments 1.2–1.4 mm, connate basally.
sepals lanceolate, 0.8–2.5 mm;
styles connate 1/3–1/2 length, long-exserted;
stigmas smooth to undulate.
sepals lanceolate, 1.5–2 mm;
styles connate 1/5 length;
stigmas undulate to slightly papillate.
6–8 mm wide.
4–5 mm wide.
dark brown, 2.5–3.5 mm.
mottled dark olive brown, 2.5–3 mm.
= 44.
Tragia ramosa
Tragia leptophylla
Tragia ramosa is a variable species showing much environmental plasticity. Collections from the western United States and western Mexico have much broader leaves than those from Texas and Nuevo León, and were previously referred to as T. stylaris. Smooth stigmatic surfaces, three to six (rarely to ten) stamens, and narrow apical leaves are characters consistent with T. ramosa.
(Discussion copyrighted by Flora of North America; reprinted with permission.)
Tragia leptophylla is known from the western part of the Edwards Plateau region in west-central Texas. K. I. Miller and G. L. Webster (1967) did not recognize T. leptophylla as a distinct species; they treated it as a synonym of T. ramosa. Tragia leptophylla differs from T. ramosa in its less branching habit, dark reddish stems, usually entire leaf blade margins, fewer staminate flowers per inflorescence, and riparian limestone cobble habitat.
(Discussion copyrighted by Flora of North America; reprinted with permission.)
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