Stillingia texana

I. M. Johnston

Contr. Gray Herb. 68: 91. 1923.

Common names: Texas toothleaf
Basionym: Sapium sylvaticum var. linearifolium Torrey in W. H. Emory, Rep. U. S. Mex. Bound. 2(1): 201. 1859
Synonyms: Stillingia sylvatica var. linearifolia (Torrey) Müller Arg.
Treatment appears in FNA Volume 12. Treatment on page 237. Mentioned on page 234.

Herbs or subshrubs, perennial, with woody caudex. Stems solitary or fascicled, erect, mostly unbranched, 1.5–4.5(–6) dm. Leaves alternate; stipules linear-lanceolate, to 1 mm; petiole absent; blade linear to linear-lanceolate, (1–)3–6(–7) × 0.3–0.6(–1) cm, base cuneate to obtuse, margins crenate-dentate, teeth with prominent blackened tips, not incurved, apex acute; midvein prominent, especially proximally, secondary veins obscure. Inflorescences sessile, 3–9 cm; staminate cymules crowded, 3–5-flowered; pistillate flowers 3–4, crowded; bracts broadly deltate, to 1 mm, apex acute, glands patelliform, sessile, 2 mm diam. Staminate flowers: calyx 1 mm. Pistillate flowers: sepals persistent, 3, well developed, elliptic; styles connate 3/4 length, to 4 mm. Capsules globose, 6–8 mm diam., shallowly 3-lobed; lobes of gynobase 2–3 mm; columella often persistent. Seeds gray, ellipsoid, 5 × 5 mm, smooth; caruncle white, broadly crescent-shaped, 1 × 1.3–1.5 mm.


Phenology: Flowering late Apr–May(–Jul); fruiting Jun–Sep.
Habitat: Calcareous prairies, open uplands.
Elevation: 200–1500 m.

Distribution

Okla., Tex., Mexico (Coahuila).

Discussion

Stillingia texana is widespread in central Texas, extending north to scattered locations in central Oklahoma.

Selected References

None.

Lower Taxa

None.
... more about "Stillingia texana"
Michael J. Huft +
I. M. Johnston +
Sapium sylvaticum var. linearifolium +
Texas toothleaf +
Okla. +, Tex. +  and Mexico (Coahuila). +
200–1500 m. +
Calcareous prairies, open uplands. +
Flowering late Apr–May(–Jul) +  and fruiting Jun–Sep. +
Contr. Gray Herb. +
Stillingia sylvatica var. linearifolia +
Stillingia texana +
Stillingia +
species +