Common Name: ROSE FAMILY Habit: Annual to tree, glandular or not. Leaf: simple to palmately or pinnately compound, generally alternate; stipules free to fused (0), persistent to deciduous. Inflorescence: cyme, raceme, panicle, cluster, or flowers 1; bractlets on pedicel ("pedicel bractlets") generally 0--3(many), subtended by bract or generally not. Flower: generally bisexual, radial; hypanthium free or fused to ovary, saucer- to funnel-shaped, subtending bractlets ("hypanthium bractlets") 0--5, alternate sepals; sepals generally 5; petals generally 5, free; stamens (0,1)5--many, anther pollen sacs generally 2; pistils (0)1--many, simple or compound, ovary superior to inferior, styles 1--5. Fruit: 1--many per flower, achene (fleshy-coated or not), follicle, drupe, or pome with generally papery core, occasionally drupe-like with 1--5 stones. Seed: generally 1--5 (per fruit, not per flower). Genera In Family: 110 genera, +- 3000 species: worldwide, especially temperate; many cultivated for ornamental, fruit, especially Cotoneaster, Fragaria, Malus, Prunus, Pyracantha, Rosa, Rubus. Note: Number of teeth is per leaf or leaflet, not per side of leaf or leaflet, except in Drymocallis. eFlora Treatment Author: Daniel Potter & Barbara Ertter, family description, key to genera, treatment of genera by Daniel Potter, except as noted Scientific Editor: Daniel Potter, Thomas J. Rosatti.
Habit: Shrub. Leaf: +- clustered on short-shoots, simple, persistent or drought-deciduous, generally deeply 3--9-lobed, generally with +- sunken glands adaxially, margin generally not toothed, +- strongly rolled under; bases persistent, overlapping, sheathing stem. Inflorescence: flowers generally 1 on short-shoots. Flower: hypanthium +- funnel-shaped, outside hairy, partly glandular or not, bractlets small, lanceolate; sepals 5, overlapping; petals 5, white to cream [yellow]; stamens (15)20--80(125); pistils 1--7(10), simple. Fruit: achene, +- fusiform to oblong, styles persistent, +- hairy. Species In Genus: 6 species: southwestern United States, northern Mexico. Etymology: (Frederick T. Pursh, North American botanist, author of Flora Americae Septentrionalis, 1774--1820) eFlora Treatment Author: Brian Vanden Heuvel & Thomas J. Rosatti Unabridged Reference: Koehler & Smith 1981 Madroño 28:13--25; Henrickson 1986 Phytologia 60:468
Common Name: BITTERBRUSH Habit: Plant 2--25(40) dm. Leaf: lobes 3(5), central generally spiny at tip, lateral from generally above middle. Flower: hypanthium +- 2.5--5 mm; sepals 2--4 mm; petals 4--8 mm, +- obovate; pistils 1--2. Fruit: canescent; style 5--7(10) mm, not plumose.
Purshia tridentata (Pursh) DC. var. tridentata
NATIVE Stem: twig hairs generally nonglandular. Leaf: adaxially densely nonglandular-hairy, sessile or sunken glands 0--few. Chromosomes: n=9. Ecology: Sagebrush scrub, pinyon/juniper woodland, conifer forest; Elevation: 900--3400 m. Bioregional Distribution: KR, NCoRH, CaR, SNH (e slope), GB; Distribution Outside California: to British Columbia, Montana, New Mexico. Flowering Time: Mar--Jul Jepson eFlora Author: Brian Vanden Heuvel & Thomas J. Rosatti Unabridged Reference: Koehler & Smith 1981 Madroño 28:13--25; Henrickson 1986 Phytologia 60:468 Jepson Online Interchange Previous taxon: Purshia tridentata var. glandulosa Next taxon: Pyracantha
Botanical illustration including Purshia tridentata var. tridentata
Citation for this treatment: Brian Vanden Heuvel & Thomas J. Rosatti 2012, Purshia tridentata var. tridentata, in Jepson Flora Project (eds.) Jepson eFlora, http://ucjeps.berkeley.edu/eflora/eflora_display.php?tid=77221, accessed on May 20, 2019.
Citation for the whole project: Jepson Flora Project (eds.) 2019, Jepson eFlora, http://ucjeps.berkeley.edu/eflora/, accessed on May 20, 2019.
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(Note: any qualifiers in the taxon distribution description, such as 'northern', 'southern', 'adjacent' etc., are not reflected in the map above, and in some cases indication of a taxon in a subdivision is based on a single collection or author-verified occurence).
Data provided by the participants of the
Consortium of California Herbaria.
MAP LEGEND View all CCH records All markers link to CCH specimen records. The original determination is shown in the popup window.
Blue markers indicate specimens that map to one of the expected Jepson geographic subdivisions (see left map). Purple markers indicate specimens collected from a garden, greenhouse, or other non-wild location.
Yellow markers indicate records that may provide evidence for eFlora range revision or may have georeferencing or identification issues.
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CCH collections by month
Duplicates counted once; synonyms included.
Species do not include records of infraspecific taxa, if there are more than 1 infraspecific taxon in CA.
Blue line denotes eFlora flowering time.
