Tragia leptophylla
Tragia urticifolia
fine-leaf noseburn
nettle-leaf noseburn
erect, brownish red to maroon-green, apex never flexuous.
erect, green, apex never flexuous.
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.
petiole 3–15 mm;
blade triangular-lanceolate, 2.7–6.7 × 1–3 cm, base truncate to cordate, margins serrate, apex acute.
terminal (appearing leaf opposed) or axillary, glands absent, staminate flowers 2–3(–5) per raceme;
staminate bracts 2–2.5 mm.
terminal (appearing leaf opposed), glands absent, staminate flowers 11–40 per raceme, evenly distributed;
staminate bracts 1–1.5 mm.
staminate 1–2 mm, persistent base 0.5–0.8 mm, pistillate 2–3 mm in fruit.
staminate 1.5–2 mm, persistent base 1–1.8 mm, longer than subtending bract;
pistillate 3–4 mm in fruit.
sepals 3–4(–5), green, 1–2.5 mm;
stamens 3–4, filaments 1.2–1.4 mm, connate basally.
sepals 3, green, 1.2–2.1 mm;
stamens 3, filaments 0.3–0.8 mm.
sepals lanceolate, 1.5–2 mm;
styles connate 1/5 length;
stigmas undulate to slightly papillate.
sepals lanceolate-ovate, 1.3–2.3 mm;
styles connate 1/3 length;
stigmas papillate.
4–5 mm wide.
7–8 mm wide.
mottled dark olive brown, 2.5–3 mm.
dark brown, 3–4 mm.
= 44.
Tragia leptophylla
Tragia urticifolia
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.)
Plants of Tragia urticifolia are easily distinguished from those of other non-glandular North American members of Tragia by the persistent bases of its staminate pedicels, which are long-extended beyond their subtending bracts. Although similar to T. betonicifolia, T. urticifolia has fewer stems, shorter pistillate sepals, inflorescences with fewer staminate flowers that are not distally clustered, and leaf blades with very light green abaxial surfaces.
(Discussion copyrighted by Flora of North America; reprinted with permission.)
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