Difference between revisions of "Aristolochia watsonii"
Contr. U.S. Natl. Herb. 16: 117. 1913.
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|name=Aristolochia porphyrophylla | |name=Aristolochia porphyrophylla | ||
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name=Aristolochia watsonii | name=Aristolochia watsonii | ||
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|authority=Wooton & Standley | |authority=Wooton & Standley | ||
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|genus=Aristolochia | |genus=Aristolochia | ||
|species=Aristolochia watsonii | |species=Aristolochia watsonii | ||
Latest revision as of 21:52, 5 November 2020
Herbs, procumbent, to 0.5 m. Young stem smooth, glabrous. Leaves: petiole 0.4-1 cm. Leaf blade lanceolate, 8 × 5 cm, base strongly sagittate, sinus depth 0.5-2 cm, apex acuminate to acute; surfaces abaxially tomentose to tomentulose; venation pinnate. Inflorescences on new growth, axillary, solitary flowers; peduncle bracteolate, to 1 cm; bracteoles lanceolate, to 6 mm. Flowers: calyx brown-purple, straight to curved; utricle angled upward, ovoid to narrowly ellipsoid, 0.6-0.7 × 0.5 cm; syrinx tubular, 1.5 mm; tube angled upward, cylindric, 1 × 0.3 cm; annulus absent; limb orangish with maroon spots, 1-lobed, lobe ovate, 1-6 × 0.6 cm, pilose; gynostemium 5-lobed, crown-shaped, 1-4 mm; anthers 5; ovary 5-locular, to 1 cm. Capsule ovoid to obovoid, 1.5 × 1-2 cm, dehiscence acropetal; valves 5; septa entire, not attached to valves. Seeds flat, triangular, 0.3-0.4 × 0.4 mm.
Phenology: Flowering spring–summer.
Habitat: Rocky slopes
Elevation: 50-1000 m
Distribution
Ariz., N.Mex., Mexico.
Discussion
Selected References
None.