Dorstenia contrajerva

Linnaeus

Sp. Pl. 1: 121. 1753.

Common names: Contra yerba tusilla
IllustratedIntroduced
Treatment appears in FNA Volume 3.
Revision as of 07:37, 30 July 2020 by imported>Volume Importer
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Herbs, to 4.5 dm. Stems covered with persistent petiole bases. Leaves: stipules persistent; petiole 8-25 cm. Leaf-blade oblong-ovate, deltate-ovate, or orbiculate, entire or deeply pinnately lobed, 6-20 × 7-22 cm, pubescent. Inflorescences: peduncle 7-25 cm; receptacle flat, curved, or undulate, quadrangular or lobed, to 3.5 cm square. Drupes somewhat globose. Seeds yellowish, explosively expelled. 2n = 30.


Phenology: Flowering all year.
Habitat: Moist, disturbed sites
Elevation: 0-20 m

Distribution

V3 623-distribution-map.gif

Introduced; Fla., s Mexico, Central America, n South America

Discussion

Dorstenia contrajerva is a weed in greenhouses and nurseries; it rarely occurs in the wild in North America. It is sometimes cultivated as a house plant.

Selected References

None.

Lower Taxa

None.
... more about "Dorstenia contrajerva"
Richard P. Wunderlin +
Linnaeus +
3 (?) +  and 5 (?) +
4-lobed +, tubular +  and 2-3-lobed +
Contra yerba +  and tusilla +
Fla. +, s Mexico +, Central America +  and n South America +
globose +
0-20 m +
pistillate +  and staminate +
Moist, disturbed sites +
with 3-5 basal palmate veins +  and pinnate +
6 cm60 mm <br />0.06 m <br /> (20 cm200 mm <br />0.2 m <br />) +
lobed +, entire +, orbiculate +, deltate-ovate +  and oblong-ovate +
lobed +  and entire +
7 cm70 mm <br />0.07 m <br /> (25 cm250 mm <br />0.25 m <br />) +
8 cm80 mm <br />0.08 m <br /> (25 cm250 mm <br />0.25 m <br />) +
Flowering all year. +
1-2-carpellate +
long-pedunculate +
square +, lobed +, quadrangular +  and undulate +
0 cm0 mm <br />0 m <br /> (3.5 cm35 mm <br />0.035 m <br />) +
connate +  and distinct +
2 +  and 6 +
Illustrated +  and Introduced +
1 +  and 3 +
not evident +
Dorstenia contrajerva +
Dorstenia +
species +
flattened +