Croton incanus


in A. von Humboldt et al., Nov. Gen. Sp. 2(fol.): 58; 2(qto.): 73. 1817.

Common names: Salvia Torrey’s croton vara blanca
Synonyms: Croton suaveolens var. oblongifolius Torrey C. torreyanus Müller Arg.
Treatment appears in FNA Volume 12. Treatment on page 217. Mentioned on page 210, 218.

Shrubs, 10–20 dm, monoecious. Stems much branched distally, stellate-velutinous. Leaves sometimes clustered near inflorescences; stipules linear-subulate, 2–3 mm; petiole 0.7–1.5 cm, (1/4–)3/8–1/2 leaf blade length, glands absent at apex; blade oblong, ovate-oblong, or elliptic-oblong, 1.5–4(–6) × 1.5–3 cm, base rounded to obtuse, margins entire, apex acute to obtuse, abaxial surface whitish, densely stellate-tomentose, adaxial surface darker green, stellate-tomentose. Inflorescences bisexual, racemes, 2–5 cm, staminate flowers 10–25, pistillate flowers 2–4. Pedicels: staminate 1.7–3 mm, pistillate 1–2 mm. Staminate flowers: sepals 5, 1.5–2 mm, abaxial surface densely tomentose; petals 5, oblanceolate, 1.5–2 mm, abaxial surface villous; stamens 10–16. Pistillate flowers: sepals 5, equal, 1.2–3.5 mm, margins entire, apex straight to slightly incurved, abaxial surface tomentose; petals 0; ovary 3-locular; styles 3, 1.8–3.5 mm, 2-fid to base, terminal segments 6. Capsules 6–8 × 4–5 mm, smooth; columella apex with 3 rounded, inflated lobes. Seeds 4.5–7 × 3–4 mm, dull. 2n = 20.

Phenology: Flowering Mar–Nov.
Habitat: Calcareous loams, xeric rocky limestone slopes and canyons.
Elevation: 0–700 m.


Croton incanus is known in the flora area from the trans-Pecos region to south Texas.

Selected References


Lower Taxa

... more about "Croton incanus"
Benjamin W. van Ee +  and Paul E. Berry +
Salvia +, Torrey’s croton +  and vara blanca +
Tex. +, n +  and c Mexico. +
0–700 m. +
Calcareous loams, xeric rocky limestone slopes and canyons. +
Flowering Mar–Nov. +
in A. von Humboldt et al., Nov. Gen. Sp. +
Croton suaveolens var. oblongifolius +  and C. torreyanus +
Croton incanus +
species +