Croton incanus

Kunth 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.

Discussion

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

Selected References

None.

Lower Taxa

None.

"connate" is not a number. "distinct" is not a number.

... more about "Croton incanus"
tomentose +, villous +  and stellate-tomentose +
stellate-tomentose +
straight +
acute;obtuse +
Benjamin W. van Ee +  and Paul E. Berry +
Kunth in A. von Humboldt et al. +
rounded +  and obtuse +
4 cm40 mm <br />0.04 m <br /> (6 cm60 mm <br />0.06 m <br />) +
1.5 cm15 mm <br />0.015 m <br /> (4 cm40 mm <br />0.04 m <br />) +
elliptic-oblong;ovate-oblong;elliptic-oblong;ovate-oblong;oblong +
1.5 cm15 mm <br />0.015 m <br /> (3 cm30 mm <br />0.03 m <br />) +
0.6 cm6 mm <br />0.006 m <br /> (0.8 cm8 mm <br />0.008 m <br />) +
0.4 cm4 mm <br />0.004 m <br /> (0.5 cm5 mm <br />0.005 m <br />) +
Salvia +, Torrey’s croton +  and vara blanca +
Tex. +, n +  and c Mexico +
0–700 m. +
pistillate +  and staminate +
subtending +
Calcareous loams, xeric rocky limestone slopes and canyons. +
scale-like +  and stellate +
axillary +  and terminal +
palmate +  and pinnate +
colorless +  and reddish +
deciduous +, semideciduous +  and persistent +
inflated;rounded +
palmate +  and pinnate +
denticulate +  and crenate +
extrastaminal +
pistillate +  and staminate +
0.1 cm1 mm <br />0.001 m <br /> (0.2 cm2 mm <br />0.002 m <br />) +
pale green +  and white +
list;count;distinct +
oblanceolate +
0.15 cm1.5 mm <br />0.0015 m <br /> (0.2 cm2 mm <br />0.002 m <br />) +
1/4;3/8-1/2 +
0.7 cm7 mm <br />0.007 m <br /> (1.5 cm15 mm <br />0.015 m <br />) +
Flowering Mar–Nov. +
(1-)3-carpellate +
Nov. Gen. Sp. +
2 cm20 mm <br />0.02 m <br /> (5 cm50 mm <br />0.05 m <br />) +
0.45 cm4.5 mm <br />0.0045 m <br /> (0.7 cm7 mm <br />0.007 m <br />) +
lenticular +, globose +, ovoid +, oblong +  and ellipsoid +
0.3 cm3 mm <br />0.003 m <br /> (0.4 cm4 mm <br />0.004 m <br />) +
valvate +  and imbricate +
distinct +  and connate +
0.12 cm1.2 mm <br />0.0012 m <br /> (0.35 cm3.5 mm <br />0.0035 m <br />) +
stellate-velutinous +
caducous +, deciduous +  and persistent +
linear-subulate +
0.2 cm2 mm <br />0.002 m <br /> (0.3 cm3 mm <br />0.003 m <br />) +
connate +  and distinct +
0.18 cm1.8 mm <br />0.0018 m <br /> (?) +  and 0.35 cm3.5 mm <br />0.0035 m <br /> (?) +
Croton suaveolens var. oblongifolius +  and C. torreyanus +
Croton incanus +
species +
perennial +  and annual +
14 +, 10 +, 9 +  and 8 +