Croton fruticulosus

Engelmann ex Torrey in W. H. Emory

Rep. U.S. Mex. Bound. 2(1): 194. 1859.

Common names: Bush croton encinilla hierba loca
Illustrated
Treatment appears in FNA Volume 12. Treatment on page 214. Mentioned on page 209, 215.

Shrubs, 2–10 dm, monoecious. Stems much branched distally, stellate-hairy. Leaves not clustered; stipules rudimentary or absent; petiole 0.4–1 (–1.5) cm, 1/8–1/5 blade length, glands absent at apex; blade ovate to ovatelanceolate, 2–8 × 2–4 cm, base truncate to cordate, margins serrulate, often slightly undulate, apex attenuate, acute, abaxial surface pale green, stellate-hairy, adaxial surface darker green, puberulent. Inflorescences bisexual, racemes, 3–12 cm, staminate flowers 10–20, pistillate flowers 2–5. Pedicels: staminate 2.5–4 mm, pistillate 0–0.5 mm. Staminate flowers: sepals 5, 0.8–1.2 mm, abaxial surface stellate-tomentose; petals 5, oblanceolate to spatulate, 2 mm, abaxial surface glabrous except margins densely fimbrillate-villous; stamens 9–16. Pistillate flowers: sepals 5, equal, 2.2 mm, margins entire, apex incurved, abaxial surface stellate-hairy; petals 0; ovary 3-locular; styles 3, 3–4.5 mm, 2-fid to base, terminal segments 6. Capsules 5–6 mm diam., smooth; columella apex with 3 rounded, inflated lobes. Seeds 4–5 × 3.2–3.8 mm, shiny.


Phenology: Flowering May–Dec.
Habitat: Limestone or basalt hills.
Elevation: 100–1700 m.

Distribution

V12 611-distribution-map.jpg

Ariz., N.Mex., Tex., Mexico (Chihuahua), Mexico (Coahuila), Mexico (Nuevo León), Mexico (San Luis Potosí), Mexico (Tamaulipas)

Discussion

Croton fruticulosus is known in the flora area from southeastern Arizona through southern New Mexico and trans-Pecos Texas to the Edwards Plateau.

Selected References

None.

Lower Taxa

None.

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

... more about "Croton fruticulosus"
stellate-hairy +, glabrous +  and stellate-tomentose +
acute;attenuate +
Benjamin W. van Ee +  and Paul E. Berry +
Engelmann ex Torrey in W. H. Emory +
truncate +  and cordate +
2 cm20 mm <br />0.02 m <br /> (8 cm80 mm <br />0.08 m <br />) +
ovate;ovatelanceolate +
2 cm20 mm <br />0.02 m <br /> (4 cm40 mm <br />0.04 m <br />) +
0.5 cm5 mm <br />0.005 m <br /> (0.6 cm6 mm <br />0.006 m <br />) +
Bush croton +, encinilla +  and hierba loca +
Ariz. +, N.Mex. +, Tex. +, Mexico (Chihuahua) +, Mexico (Coahuila) +, Mexico (Nuevo León) +, Mexico (San Luis Potosí) +  and Mexico (Tamaulipas) +
100–1700 m. +
pistillate +  and staminate +
subtending +
Limestone or basalt hills. +
scale-like +  and stellate +
axillary +  and terminal +
palmate +  and pinnate +
colorless +  and reddish +
deciduous +, semideciduous +  and persistent +
inflated;rounded +
palmate +  and pinnate +
entire +  and serrulate +
fimbrillate-villous +
undulate +
extrastaminal +
pistillate +  and staminate +
0 cm0 mm <br />0 m <br /> (0.05 cm0.5 mm <br />5.0e-4 m <br />) +
pale green +  and white +
list;count;distinct +
oblanceolate +  and spatulate +
2 cm20 mm <br />0.02 m <br /> (?) +
1 cm10 mm <br />0.01 m <br /> (1.5 cm15 mm <br />0.015 m <br />) +
0.4 cm4 mm <br />0.004 m <br /> (1 cm10 mm <br />0.01 m <br />) +
Flowering May–Dec. +
(1-)3-carpellate +
Rep. U.S. Mex. Bound. +
3 cm30 mm <br />0.03 m <br /> (12 cm120 mm <br />0.12 m <br />) +
0.4 cm4 mm <br />0.004 m <br /> (0.5 cm5 mm <br />0.005 m <br />) +
lenticular +, globose +, ovoid +, oblong +  and ellipsoid +
0.32 cm3.2 mm <br />0.0032 m <br /> (0.38 cm3.8 mm <br />0.0038 m <br />) +
valvate +  and imbricate +
distinct +  and connate +
2.2 cm22 mm <br />0.022 m <br /> (0.08 cm0.8 mm <br />8.0e-4 m <br />) +
Illustrated +
stellate-hairy +
caducous +, deciduous +  and persistent +
connate +  and distinct +
0.3 cm3 mm <br />0.003 m <br /> (?) +  and 0.45 cm4.5 mm <br />0.0045 m <br /> (?) +
Croton fruticulosus +
species +
perennial +  and annual +
14 +, 10 +, 9 +  and 8 +