Rosa woodsii subsp. gratissima

MOJAVE ROSE

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: Shrub to vine, often thicket-forming, generally prickly. Leaf: generally odd-pinnately compound; stipules generally attached to petiole, generally gland-margined. Inflorescence: generally +- cyme or flowers 1; pedicel bractlets 0. Flower: hypanthium urn-shaped, bractlets 0; sepals often with long expanded tip; petals generally 5 (except cultivated), generally pink in California (white to red or yellow); stamens generally > 20; pistils generally many, ovaries superior, styles attached at tip, generally hairy. Fruit: bony achenes generally enclosed in fleshy, generally +- red hypanthium (hip).
Etymology: (Latin: ancient name) Note: Species hybridize freely; other non-natives established locally. FNANM treatment by Lewis & Ertter uses both subspecies and varieties, the latter mostly reserved for localized variants within a subspecies; 2 varieties in Rosa woodsii subsp. gratissima treated here but not in TJM2 (2012).
eFlora Treatment Author: Barbara Ertter
Reference: Ertter & Lewis 2008 Madroño 55:170--177
Unabridged Reference: Lewis & Ertter 2007 Novon 17:342--353

Habit: Shrub, open or thicket-forming, generally 5--30 dm. Stem: prickles paired or not, generally +- straight (+- curved) (in California). Leaf: axis finely velvety (glabrous), hairs +- 0.1 mm, glandless; leaflets 5--7, (+-) glabrous; terminal leaflet 10--40 mm, +- obovate-elliptic, widest at or above middle, tip +- obtuse, margins single-toothed, glandless. Inflorescence: 1--12-flowered; pedicels generally 10--20 mm, +- glabrous, glandless. Flower: hypanthium generally 3--5 mm wide at flower, glabrous, glandless, neck 2--4 mm wide; sepals glandless (in California), generally entire (or with simple, linear lobes), tip +- = body, entire; petals generally 15--20 mm, pink; pistils generally 20--35. Fruit: generally 9--12 mm wide; sepals generally erect, persistent; achenes 3--4 mm.
Note: Yosemite Valley plants ambiguous.
Unabridged Note: Rosa woodsii var. woodsii in central United States. Rosa woodsii subsp. puberulenta (Rydb.) W.H. Lewis & Ertter (open habit, long curved prickles), Rosa woodsii subsp. arizonica (Rydb.) W.H. Lewis & Ertter (glandular sepals, short curved prickles) possibly entering California from east.