Difference between revisions of "Opuntia rufida"
Proc. Amer. Acad. Arts 3: 298. 1856.
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|name=Opuntia microdasys var. rufida | |name=Opuntia microdasys var. rufida | ||
|authority=(Engelmann) K. Schumann | |authority=(Engelmann) K. Schumann | ||
| − | }}{{Treatment/ID/Synonym | + | |rank=variety |
| + | }} {{Treatment/ID/Synonym | ||
|name=Opuntia rufida var. tortiflora | |name=Opuntia rufida var. tortiflora | ||
|authority=M. S. Anthony | |authority=M. S. Anthony | ||
| + | |rank=variety | ||
}} | }} | ||
|hierarchy=Cactaceae;Cactaceae subfam. Opuntioideae;Opuntia;Opuntia rufida | |hierarchy=Cactaceae;Cactaceae subfam. Opuntioideae;Opuntia;Opuntia rufida | ||
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|elevation=600-1300 m | |elevation=600-1300 m | ||
|distribution=Tex.;Mexico (Chihuahua;Coahuila;Durango). | |distribution=Tex.;Mexico (Chihuahua;Coahuila;Durango). | ||
| − | |discussion=<p>Opuntia rufida hybridizes in Mexico with O. microdasys.</p><!-- | + | |discussion=<p><i>Opuntia rufida</i> hybridizes in Mexico with <i>O. microdasys</i>.</p><!-- |
--><p>The vernacular name is derived from the tendency for the glochids to shed into the eyes of grazing cattle that bump against the plant.</p> | --><p>The vernacular name is derived from the tendency for the glochids to shed into the eyes of grazing cattle that bump against the plant.</p> | ||
|tables= | |tables= | ||
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-->{{#Taxon: | -->{{#Taxon: | ||
name=Opuntia rufida | name=Opuntia rufida | ||
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|authority=Engelmann | |authority=Engelmann | ||
|rank=species | |rank=species | ||
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|publication year=1856 | |publication year=1856 | ||
|special status= | |special status= | ||
| − | |source xml=https:// | + | |source xml=https://bitbucket.org/aafc-mbb/fna-data-curation/src/2e0870ddd59836b60bcf96646a41e87ea5a5943a/coarse_grained_fna_xml/V4/V4_270.xml |
|subfamily=Cactaceae subfam. Opuntioideae | |subfamily=Cactaceae subfam. Opuntioideae | ||
|genus=Opuntia | |genus=Opuntia | ||
Latest revision as of 21:57, 5 November 2020
Shrubs or trees, with short trunk, many branched, 0.5–1.5 m. Stem segments not disarticulating, grayish green, flattened, reniform, circular, elliptic, or obovate, (7.5–)10–18(–25) × 5–25 cm, low tuberculate, pubescent; areoles 8–13 per diagonal row across midstem segment, circular, 3–3.2 mm diam.; wool white to tan, aging gray. Spines absent. Glochids numerous, nearly filling areole, red-brown to white, 1–2.5 mm. Flowers: inner tepals yellow throughout, aging apricot to orange, obovate-apiculate, 25–38 mm; filaments whitish; anthers yellow; style green; stigma lobes dark green. Fruits red with green flesh, obovate, 20–35 × 15–23 mm, fleshy, short pubescent, spineless; umbilicus 5–7 mm deep; areoles (30–)36–52. Seeds yellowish, elliptic to subcircular, angular, 3–3.5 × 2.5–2.8 mm, thick, sides smooth or with 1–2 depressions; girdle protruding about 0.3 mm. 2n = 22.
Phenology: Flowering spring (Mar–Apr).
Habitat: Calcareous to volcanic flats, hillsides, sandy to gravelly desert soils
Elevation: 600-1300 m
Distribution
Tex., Mexico (Chihuahua, Coahuila, Durango).
Discussion
Opuntia rufida hybridizes in Mexico with O. microdasys.
The vernacular name is derived from the tendency for the glochids to shed into the eyes of grazing cattle that bump against the plant.
Selected References
None.