Croton michauxii var. michauxii

Common names: Michaux’s croton narrow-leaf rushfoil
IllustratedEndemic
Synonyms: Crotonopsis abnormis Baillon C. spinosa Nash
Treatment appears in FNA Volume 12. Treatment on page 220.

Leaf-blades lanceolate-linear, 1.8–3.5 × 0.1–0.3 cm, abaxial surface (midstem leaves) hairs with radii separate 1/2+ length, adaxial surface hairs appressed, not overlapping, radii usually 5–8. Inflorescences 1–3 cm, achenes usually 3–6, ± laxly spaced (not appearing sessile in axil of subtending leaf). Staminate flowers usually greater than 1 mm diam. Achenes densely stellate-lepidote, hairs ± spreading, radii separate most of length, umbos usually sharp, sometimes rounded.


Phenology: Flowering Jun–Oct.
Habitat: Deep sandy soils, forest openings, disturbed soils, coasts, riverine beaches.
Elevation: 0–100 m.

Distribution

V12 596-distribution-map.jpg

Ala., Ark., Fla., Ga., Ill., Iowa, La., Miss., Mo., S.C., Tenn., Tex.

Discussion

Selected References

None.

Lower Taxa

None.

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

lepidote +, glabrous +  and stellate-lepidote +
0.25 cm2.5 mm <br />0.0025 m <br /> (0.3 cm3 mm <br />0.003 m <br />) +
stellate-lepidote +
1mm;1.2mm +
straight +
Benjamin W. van Ee +  and Paul E. Berry +
G. L. Webster +
acute +  and cuneate +
Crotonopsis linearis +
0.4 cm4 mm <br />0.004 m <br /> (1.5 cm15 mm <br />0.015 m <br />) +
1.5 cm15 mm <br />0.015 m <br /> (4 cm40 mm <br />0.04 m <br />) +
lanceolate-linear;ovatelanceolate +
0.1 cm1 mm <br />0.001 m <br /> (0.4 cm4 mm <br />0.004 m <br />) +
Michaux’s croton +  and narrow-leaf rushfoil +
Ala. +, Ark. +, Fla. +, Ga. +, Ill. +, Iowa +, La. +, Miss. +, Mo. +, S.C. +, Tenn. +  and Tex. +
0–100 m. +
subtending +
Deep sandy soils, forest openings, disturbed soils, coasts, riverine beaches. +
separate +
scale-like +  and stellate +
axillary +  and terminal +
1 cm10 mm <br />0.01 m <br /> (3 cm30 mm <br />0.03 m <br />) +
palmate +  and pinnate +
colorless +  and reddish +
1.8 cm18 mm <br />0.018 m <br /> (3.5 cm35 mm <br />0.035 m <br />) +
lanceolate-linear +
0.1cm;0.3cm +
deciduous +, semideciduous +  and persistent +
palmate +  and pinnate +
denticulate +  and crenate +
extrastaminal +
staminate +  and pistillate +
0 cm0 mm <br />0 m <br /> (0.1 cm1 mm <br />0.001 m <br />) +
pale green +  and white +
list;count;distinct +
spatulate +
0.06 cm0.6 mm <br />6.0e-4 m <br /> (0.1 cm1 mm <br />0.001 m <br />) +
0.1 cm1 mm <br />0.001 m <br /> (0.5 cm5 mm <br />0.005 m <br />) +
Flowering Jun–Oct. +
(1-)3-carpellate +
0.2 cm2 mm <br />0.002 m <br /> (0.25 cm2.5 mm <br />0.0025 m <br />) +
lenticular +, globose +, ovoid +, oblong +  and ellipsoid +
1 cm10 mm <br />0.01 m <br /> (?) +
valvate +  and imbricate +
distinct +  and connate +
0.1 cm1 mm <br />0.001 m <br /> (0.15 cm1.5 mm <br />0.0015 m <br />) +
Illustrated +  and Endemic +
0.3 cm3 mm <br />0.003 m <br /> (3 cm30 mm <br />0.03 m <br />) +
stellate-lepidote +
caducous +, deciduous +  and persistent +
connate +  and distinct +
0.05 cm0.5 mm <br />5.0e-4 m <br /> (?) +  and 0.08 cm0.8 mm <br />8.0e-4 m <br /> (?) +
Crotonopsis abnormis +  and C. spinosa +
Croton michauxii var. michauxii +
Croton michauxii +
variety +
rounded +  and sharp +
14 +, 10 +, 9 +  and 8 +