Canotia holacantha

Torrey ex A. Gray in J. C. Ives

Rep. Colorado R. 4: 15. 1861.

Common names: Crucifixion thorn
Illustrated
Treatment appears in FNA Volume 12. Treatment on page 119.
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Shrubs or trees 2–5 (–10) m. Stems many-branched, virgate, principal branches ascending, pale green. Flowers: sepals 2–4 mm; petals oblong, 4–5 × 2 mm; stamens 5, filaments as long as petals; styles united into beak. Capsules narrowly obovoid, 21–27 × 6–10 mm (including beak), opening from apex to middle. Seeds basally compressed. 2n = 30.


Phenology: Flowering spring to fall; fruiting late summer–winter, fruit persisting into spring.
Habitat: Open roadsides, deserts.
Elevation: 0–2000 m.

Discussion

Canotia holacantha has been reported from Utah (J. R. Hastings et al. 1972; M. C. Johnston 1975), but was not included in A Utah Flora (S. L. Welsh et al. 1993, 2003); no corroborating specimens have been located.

Selected References

None.

Lower Taxa

None.
... more about "Canotia holacantha"
Jinshuang Ma +  and Geoffrey A. Levin +
Torrey ex A. Gray in J. C. Ives +
1-veined +, palmate +  and pinnate +
2.1 cm21 mm <br />0.021 m <br /> (2.7 cm27 mm <br />0.027 m <br />) +
0.6 cm6 mm <br />0.006 m <br /> (1 cm10 mm <br />0.01 m <br />) +
Crucifixion thorn +
Ariz. +  and Mexico (Sonora) +
0–2000 m. +
Open roadsides, deserts. +
adnate +  and free +
bisexual +  and unisexual +
whorled +, opposite +, subopposite +  and alternate +
scale-like +
parietal +, axile +  and placentation +
distinct +
0.4 cm4 mm <br />0.004 m <br /> (0.5 cm5 mm <br />0.005 m <br />) +
2 cm20 mm <br />0.02 m <br /> (?) +
Flowering spring to fall +  and fruiting late summer–winter, fruit persisting into spring. +
Rep. Colorado R. +
1 +  and 2 +
compressed +
distinct +
0.2 cm2 mm <br />0.002 m <br /> (?) +  and 0.4 cm4 mm <br />0.004 m <br /> (?) +
Illustrated +
adnate +, free +  and distinct +
virgate +  and many-branched +
Canotia holacantha +
species +
evergreen +, deciduous +, perennial +  and annual +
tree +  and shrub +
polygamomonoecious +, dioecious +  and synoecious +