Rosa bridgesii Crép. ex Rydb.

Species

Angiosperms > Rosales > Rosaceae > Rosa

Characteristics

Subshrubs, forming open colonies. Stems erect, (1–)2–4(–8) dm, openly branched; bark often glaucous when young, gray to dark brown with age, glabrous; infrastipular prickles paired, erect, largest ± flattened, subulate, 3–10 × 2–7 mm, ?base glabrous?, internodal rare or absent, smaller, mixed with aciculi, eglandular. Leaves 2.5–11 cm; stipules 5–10 × 2–4 mm, auricles flared, 1–3 mm, margins entire, usually sessile-glandular, surfaces glabrous, stipitate-glandular; petiole and rachis with sparse pricklets, glabrous or densely fine hairy ?hairs to 0.2 mm?, densely stipitate-glandular; leaflets (3–)5–7, terminal: petiolule 3–20 mm, blade obovate or widely elliptic-cuneate to ± orbiculate, 10–30(–50) × 8–25(–30) mm, membranous to ± leathery, base rounded-obtuse, margins 2+-crenate, teeth 8–12 per side, obtuse, gland-tipped, apex obtuse to truncate, abaxial surfaces gray-green, finely puberulent, sometimes sparsely stipitate-glandular, adaxial green, dull, finely puberulent to glabrate. Inflorescences corymbs, 1 or 2(–7)-flowered. Pedicels erect, relatively slender, 5–17 mm, glabrous, eglandular or stipitate-glandular; bracts 1–3, lanceolate, 3–10 × 1–6 mm, margins entire, stipitate-glandular, surfaces glabrous, eglandular. Flowers 2.5–3.5 cm diam.; hypanthium ovoid-globose to widely urceolate, 4–5 × 3–4 mm, glabrous, rarely sparsely setose, usually eglandular, neck 0.5–1(–2) × 1.5–3 mm; sepals spreading, lanceolate, 6–14 × 2–3 mm, tip 0–4 × 0.5 mm, margins entire, abaxial surfaces puberulent, usually stipitate-glandular; petals single, deep pink, 10–20 × 10–20 mm; carpels 10–30, styles exsert 0.5–1 mm beyond stylar orifice (1–1.5 mm diam.) of hypanthial disc (2–4 mm diam.). Hips scarlet, ovoid to depressed-globose to pyriform, (8–)10–18 × 7–14 mm, fleshy, glabrous, rarely sparsely setose distally, eglandular, neck 1 × 2.5–4.5 mm; sepals persistent, erect. Achenes basiparietal, 1–11, cream to pale brown, 3.5–5(–6.5) × 2.5–4 mm. 2n = 14, 28.
Life form perennial
Growth form shrub
Growth support -
Foliage retention deciduous
Sexuality -
Pollination -
Spread -
Mature width (meter) -
Mature height (meter) 0.1 - 0.8
Root system -
Rooting depth (meter) -
Root diameter (meter) -
Flower color
Blooming months -
Fruit color -
Fruiting months -
Nitrogen fixer -
Photosynthetic pathway -

Environment

Light 4-9
Soil humidity 1-5
Soil texture 3-4
Soil acidity -
Soil nutriment -
Hardiness (USDA) -

Usage

Uses -
Edible -
Therapeutic use -
Human toxicity -
Animal toxicity -

Cultivation

Mode -
Germination duration (days) 30 - 365
Germination temperacture (C°) 12
Germination luminosity -
Germination treatment -
Minimum temperature (C°) -
Optimum temperature (C°) -
Size -
Vigor -
Productivity -

Distribution

Rosa bridgesii world distribution map, present in United States of America

Identifiers

LSID urn:lsid:ipni.org:names:60464133-2
WFO ID wfo-0001131728
COL ID 78YBV
BDTFX ID -
INPN ID -
Wikipedia (EN)
Wikipedia (FR)

Synonyms

Rosa calvaria Rosa yainacensis Rosa crenulata Rosa covillei Rosa bridgesii