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 ornament, 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: Perennial herb, 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. Chromosomes: n=7. Etymology: (Greek: wood beauty) Note: Recognition based on morphological, molecular evidence. Drymocallis ashlandica (Green) Rydb. (inflorescence narrow, petioles glandular, petals yellow) in southwestern Oregon, possibly northwestern California. 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. eFlora Treatment Author: Barbara Ertter Reference: Ertter 2007 J Bot Res Inst Texas 1:31--46
Drymocallis rhomboidea (Rydb.) Rydb.
NATIVE Habit: Tufted. Stem: generally 20--45 cm, glandular hairs 0 to sparse at base. Leaf: basal generally 5--18 cm, sheathing base strigose, lateral leaflet pairs 2--3, terminal leaflet 10--30 mm, obovate-elliptic, obtuse to rounded, teeth +- single, 8--12 per side. Inflorescence: leafy or not, congested to spreading, branch angle generally 15--40°; pedicels 1--5 mm, lowermost to 15 mm, glandular hairs 0 to sparse, short nonglandular hairs generally dense. Flower: opening narrowly; hypanthium bractlets 2--3.5 mm, +- 1 mm wide, lance-linear; sepals generally 4--6 mm, +- obtuse; petals erect, 3--5 mm, < sepals, +- narrow-obovate, cream-white; styles 1.5--2.5 mm. Fruit: 1--1.3 mm, light red-brown. Ecology: Dry rocky slopes, roadcuts; Elevation: 180--2500 m. Bioregional Distribution: KR, NCoRH, n CaRH; Distribution Outside California: southwestern Oregon. Flowering Time: Jun--Jul Synonyms: Potentilla glandulosa Lindl. subsp. globosa D.D. Keck; Potentilla rhomboidea Rydb. Jepson eFlora Author: Barbara Ertter Reference: Ertter 2007 J Bot Res Inst Texas 1:31--46 Index of California Plant Names (ICPN; linked via the Jepson Online Interchange) Previous taxon: Drymocallis pseudorupestris var. saxicola Next taxon: Duchesnea
Botanical illustration including Drymocallis rhomboidea
Citation for this treatment: Barbara Ertter 2012, Drymocallis rhomboidea, in Jepson Flora Project (eds.) Jepson eFlora, https://ucjeps.berkeley.edu/eflora/eflora_display.php?tid=81331, accessed on September 10, 2024.
Citation for the whole project: Jepson Flora Project (eds.) 2024, Jepson eFlora, https://ucjeps.berkeley.edu/eflora/, accessed on September 10, 2024.
No expert verified images found for Drymocallis rhomboidea.
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