Jepson Herbarium
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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).
110 genera, ± 3000 species: worldwide, especially temperate; many cultivated for ornamental, fruit, especially Cotoneaster, Fragaria, Malus, Prunus, Pyracantha, Rosa, Rubus. [Potter et al. 2007 Plant Syst Evol 266:5–43] Number of teeth is per leaf or leaflet, not per side of leaf or leaflet, except in Drymocallis. —Scientific Editors: Daniel Potter, Thomas J. Rosatti.
Unabridged references: [Robertson 1974 J Arnold Arbor 55:303–332, 344–401, 611–662]

Key to Rosaceae

Perennial, hairs short, simple, nonglandular and/or long, cross-walled, glandular.
Stem: ± erect, from ± branched caudex or rhizomes.
Leaf: basal and cauline, alternate, odd-1-pinnately compound; leaflets toothed, terminal generally >= lateral.
Inflorescence: cyme, ± open; pedicels straight, bractlets 0.
Flower: hypanthium ± shallow, bractlets 5; sepals ± triangular; petals < to > sepals, white to yellow; stamens generally 20–25, pollen sac 1, horseshoe-shaped; pistils many, styles fusiform, attached below fruit middle.
Fruit: achene, glabrous.
n=7.
30 species: n temperate. (Greek: wood beauty) [Ertter 2007 J Bot Res Inst Texas 1:31–46] Recognition based on morphological, molecular evidence. Drymocallis ashlandica (Green) Rydb. (inflorescence narrow, petioles glandular, petals yellow) in sw OR, possibly nw CA.
Unabridged note: Convergence of morphological, molecular evidence mandates recognition of Drymocallis; infrageneric taxonomy provisional. Key characters include relative proportions of 2 hair types: short simple nonglandular hairs and longer cross-walled glandular hairs.

Tufted to matted.
Stem: generally 5–25 cm, glandular hairs abundant at base.
Leaf: basal generally 6–9 cm, sheathing base generally appressed-hairy, terminal leaflet generally 5–20 mm, widely obovate to fan-shaped, ± rounded, teeth generally ± single, 4–10 per side.
Inflorescence: not leafy, spreading, branch angle generally 20–40°; pedicels generally 3–10 mm, lowermost to 20 mm, glandular hairs generally abundant, short nonglandular hairs 0–many.
Flower: opening widely; hypanthium bractlets 2–5 mm, 1–2 mm wide, lance- linear to elliptic-ovate; sepals generally 4–6 mm, acute to obtuse; petals spreading, generally 4–8 mm, > sepals, ± obovate, cream to pale yellow; styles 1–1.5 mm.
Fruit: ± 1 mm, light brown. [Potentilla glandulosa subsp. pseudorupestris (Rydb.) D.D. Keck] [Online Interchange]

Stem: short nonglandular hairs generally present.
Leaf: leaflets generally 3 per side.
Flower: calyx with nonglandular hairs < 1 mm or 0; styles generally golden-brown.
Rocky areas; 2300–3500 m. Northwestern California, High Cascade Range, High Sierra Nevada, Warner Mountains, White and Inyo Mountains;

Previous taxon: Drymocallis pseudorupestris var. crumiana
Next taxon: Drymocallis rhomboidea

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Citation for the whole project: Jepson Flora Project (eds.) [year] Jepson eFlora, http://ucjeps.berkeley.edu/IJM.html [accessed on month, day, year]
Citation for an individual treatment: [Author of taxon treatment] [year]. [Taxon name] in Jepson Flora Project (eds.) Jepson eFlora, [URL for treatment]. Accessed on [month, day, year].

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Bioregions in which taxon occurs	Red area (if present) is the part of the bioregion lying between the upper and lower elevation limits of the taxon; markers link to CCH specimen records. If the markers are obscured, reload the page [or change window size and reload]. Yellow markers indicate records that may have georeferencing or identification issues.
Chart based on elevation range in Manual and elevations and coordinates of CCH records. Data provided by the participants of the Consortium of California Herbaria. Note: About half of the CCH records include both elevation and coordinates.	Map made in collaboration with Scott Loarie. Data provided by the participants of the Consortium of California Herbaria. View all CCH records   CCH collections by month Duplicates counted once; synonyms included. Species do not include records of infraspecific taxa. Blue line denotes Manual flowering time.