Difference between revisions of "Prunus havardii"
J. Agric. Res. 1: 153, 176. 1913.
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|name=Amygdalus havardii | |name=Amygdalus havardii | ||
|authority=W. Wight | |authority=W. Wight | ||
| + | |rank=species | ||
|publication_title=in W. R. Dudley et al., Dudley Mem. Vol., | |publication_title=in W. R. Dudley et al., Dudley Mem. Vol., | ||
|publication_place=133. 1913 (as harvardii) | |publication_place=133. 1913 (as harvardii) | ||
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-->{{#Taxon: | -->{{#Taxon: | ||
name=Prunus havardii | name=Prunus havardii | ||
| − | |||
|authority=(W. Wight) S. C. Mason | |authority=(W. Wight) S. C. Mason | ||
|rank=species | |rank=species | ||
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|publication year=1913 | |publication year=1913 | ||
|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/V9/V9_609.xml |
|subfamily=Rosaceae subfam. Amygdaloideae | |subfamily=Rosaceae subfam. Amygdaloideae | ||
|tribe=Rosaceae tribe Amygdaleae | |tribe=Rosaceae tribe Amygdaleae | ||
Revision as of 22:42, 16 December 2019
Shrubs, suckering unknown, much branched, 10–20 dm, thorny. Twigs with axillary end buds, puberulent. Leaves deciduous; petiole 1–3 mm, glabrous or puberulent, eglandular; blade rhombic, obovate, or fan-shaped, 0.5–1.6(–2) × 0.2–0.8(–1.4) cm, base broadly obtuse or rounded to nearly truncate, margins serrate or dentate in distal 1/2, teeth blunt to sharp, some callus-tipped, rarely glandular, apex rounded to obtuse, surfaces puberulent. Inflorescences solitary flowers. Pedicels 0 mm. Flowers unisexual, plants dioecious, blooming at leaf emergence; hypanthium campanulate, 2.5–3 mm, glabrous externally; sepals spreading to reflexed, triangular, 0.7–1 mm, margins entire, sparsely ciliate, surfaces glabrate; petals white, obovate, 2 mm; ovaries hairy. Drupes reddish brown, ovoid, 8–11 mm, puberulent; hypanthium tardily deciduous; mesocarps leathery to dry (splitting); stones ovoid, slightly flattened.
Phenology: Flowering Apr–Jun; fruiting Jun–Aug.
Habitat: Draws, dry rocky slopes of canyons, limestone soil, igneous rock
Elevation: 700–1700 m
Distribution
Tex., Mexico (Chihuahua).
Discussion
Prunus havardii is endemic to the Chihuahuan Desert of trans-Pecos Texas and across the Rio Grande in Mexico, with most collections from the Big Bend area.
Selected References
None.