familyRosaceae
subfamilyRosaceae subfam. Amygdaloideae
genusCrataegus
sectionCrataegus sect. Coccineae
speciesCrataegus collina
Difference between revisions of "Crataegus collina var. lettermanii"
Rhodora 10: 76. 1908.
Endemic
Basionym: Crataegus lettermanii Sargent Bot. Gaz. 31: 220. 1901 (as lettermani)
Synonyms: C. collina var. secta (Sargent) E. J. Palmer C. secta
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|subfamily=Rosaceae subfam. Amygdaloideae | |subfamily=Rosaceae subfam. Amygdaloideae | ||
|tribe=Rosaceae tribe Gillenieae | |tribe=Rosaceae tribe Gillenieae | ||
Revision as of 00:34, 28 May 2020
Leaf blades broadly elliptic, 5–7.5 cm, nearly full grown at anthesis, length/width = 1.3, chartaceous, lobes 1 or 2 per side, evident, max LII 20%, lobe apex obtuse, margins serrate, teeth 1 mm, apex subacute to obtuse, adaxial surface matte, pubescent young. Inflorescence branches pubescent. Flowers 14–18 mm diam.; stamens 5–15(–20), anthers white or cream.
Phenology: Flowering Apr; fruiting Sep–Oct.
Habitat: Pastures, fencerows, scrub, open woodlands
Elevation: 10–500 m
Discussion
Variety lettermanii has leaves rather large for Crataegus collina; they are also relatively wide and have well-developed, obtuse lobes, making it like a larger var. hirtiflora.
Selected References
None.
Lower Taxa
None.