Tragia ramosa

Torrey

Ann. Lyceum Nat. Hist. New York 2: 245. 1827.

Common names: Branched or desert or common noseburn
WeedyIllustrated
Synonyms: Tragia angustifolia Nuttall T. nepetifolia var. angustifolia (Müller Arg.) Müller Arg. T. nepetifolia var. ramosa (Torrey) Müller Arg. T. ramosa var. latifolia (Müller Arg.) Pax & K. Hoffmann T. stylaris Müller Arg. T. stylaris var. angustifolia Müller Arg. T. stylaris var. latifolia Müller Arg.
Treatment appears in FNA Volume 12. Treatment on page 189. Mentioned on page 185, 186, 187, 188.

Subshrubs, 1.2–5 dm. Stems erect to trailing, dark green to light green, apex rarely flexuous. Leaves: 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. Inflorescences terminal (often appearing leaf opposed), glands few, sessile, staminate flowers 2–20 per raceme; staminate bracts 1.5–2 mm. Pedicels: staminate 0.7–2 mm, persistent base 0.4–1.5 mm; pistillate 2–2.5 mm in fruit. Staminate flowers: sepals 3–4, green, 1–2.2 mm; stamens 3–6(–10), filaments 0.3–1 mm. Pistillate flowers: sepals lanceolate, 0.8–2.5 mm; styles connate 1/3–1/2 length, long-exserted; stigmas smooth to undulate. Capsules 6–8 mm wide. Seeds dark brown, 2.5–3.5 mm. 2n = 44.


Phenology: Flowering spring–fall; fruiting late spring–fall.
Habitat: Mesquite, desert scrub, pine-juniper, oak woodlands.
Elevation: 200–2800 m.

Distribution

Ariz., Ark., Calif., Colo., Kans., Mo., Nebr., Nev., N.Mex., Tex., Utah, Mexico (Baja California, Chihuahua, Coahuila, Nuevo León, Sonora, Tamaulipas).

Discussion

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.

Selected References

None.

Lower Taxa

None.
... more about "Tragia ramosa"
Roberto J. Urtecho +
Torrey +
Branched or desert or common noseburn +
Ariz. +, Ark. +, Calif. +, Colo. +, Kans. +, Mo. +, Nebr. +, Nev. +, N.Mex. +, Tex. +, Utah +, Mexico (Baja California +, Chihuahua +, Coahuila +, Nuevo León +, Sonora +  and Tamaulipas). +
200–2800 m. +
Mesquite, desert scrub, pine-juniper, oak woodlands. +
Flowering spring–fall +  and fruiting late spring–fall. +
Ann. Lyceum Nat. Hist. New York +
Weedy +  and Illustrated +
Tragia angustifolia +, T. nepetifolia var. angustifolia +, T. nepetifolia var. ramosa +, T. ramosa var. latifolia +, T. stylaris +, T. stylaris var. angustifolia +  and T. stylaris var. latifolia +
Tragia ramosa +
species +