Difference between revisions of "Dudleya densiflora"
Desert Pl. Life 15: 123. 1943 ,.
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|name=Stylophyllum densiflorum | |name=Stylophyllum densiflorum | ||
|authority=Rose | |authority=Rose | ||
| + | |rank=species | ||
|publication_title=in N. L. Britton and J. N. Rose, New N. Amer. Crassul., | |publication_title=in N. L. Britton and J. N. Rose, New N. Amer. Crassul., | ||
|publication_place=36. 1903, | |publication_place=36. 1903, | ||
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|name=Echeveria nudicaulis | |name=Echeveria nudicaulis | ||
|authority=Munz | |authority=Munz | ||
| + | |rank=species | ||
}} {{Treatment/ID/Synonym | }} {{Treatment/ID/Synonym | ||
|name=Stylophyllum nudicaule | |name=Stylophyllum nudicaule | ||
|authority=(Munz) Abrams | |authority=(Munz) Abrams | ||
| + | |rank=species | ||
}} | }} | ||
|hierarchy=Crassulaceae;Dudleya;Dudleya subg. Stylophyllum;Dudleya densiflora | |hierarchy=Crassulaceae;Dudleya;Dudleya subg. Stylophyllum;Dudleya densiflora | ||
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-->{{#Taxon: | -->{{#Taxon: | ||
name=Dudleya densiflora | name=Dudleya densiflora | ||
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|authority=(Rose) Moran | |authority=(Rose) Moran | ||
|rank=species | |rank=species | ||
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|publication year= | |publication year= | ||
|special status= | |special status= | ||
| − | |source xml=https://jpend@bitbucket.org/aafc-mbb/fna-data-curation.git/src/ | + | |source xml=https://jpend@bitbucket.org/aafc-mbb/fna-data-curation.git/src/f50eec43f223ca0e34566be0b046453a0960e173/coarse_grained_fna_xml/V8/V8_350.xml |
|genus=Dudleya | |genus=Dudleya | ||
|subgenus=Dudleya subg. Stylophyllum | |subgenus=Dudleya subg. Stylophyllum | ||
Revision as of 23:27, 16 December 2019
Caudices to 2 dm × 1–2.5 cm, clumps to 3 dm diam. Leaves without resinous odor; rosette 20–40-leaved, 7–25 cm diam.; blade green, appearing whitish, linear, terete or subterete, base flattened, 6–15(–23) × 0.6–1.2 cm, 5–8 mm thick, 1–1.5 times wider than thick, base 10–20 mm wide, surfaces farinose, not viscid, not oily. Inflorescences: cyme 3–5-branched, rounded, (1.5–3 × 0.4–1 dm); branches usually 1–2 times bifurcate; cincinni 2–8-flowered, scarcely circinate, 2–4 cm; floral shoots 1–3 dm × 2–4 mm; leaves 5–15, erect, lanceolate, 1–4 × 0.5–1.2 cm. Pedicels 2–5 mm. Flowers: petals spreading from middle, connate 0.5–2 mm, white or pinkish, narrowly ovate, 5–10 × 2–3 mm, apex acute, corolla 12–20 mm diam.; pistils erect, 6–9 mm; styles 2–3.5 mm. Follicles widely spreading, with adaxial margins 10–45º above horizontal. 2n = 34.
Phenology: Flowering spring.
Habitat: Cliffs and steep rocky slopes
Elevation: 100-600 m
Discussion
Of conservation concern.
Dudleya densiflora is a distinct endemic that is very local and now rare at the south base of the San Gabriel Mountains near the mouth of San Gabriel Canyon; it is considered seriously threatened (California Native Plant Society, http://cnps.web.aplus.net/cgi-bin/inv/inventory.cgi).
Dudleya densiflora is in the Center for Plant Conservation’s National Collection of Endangered Plants.
Selected References
None.