Holodiscus microphyllus Rydb.

Species

Angiosperms > Rosales > Rosaceae > Holodiscus

Characteristics

Shrubs, erect to spreading, ?often tangled and tightly condensed where exposed or with open growth where protected?, 3–10(–20) dm. Stems: long shoots (not predominant, depending upon seasonal conditions) 2–10(–20) cm, 1st year slightly angled or round, green to straw yellow, glabrous or canescent, pilose, or tomentose, sessile-and stipitate-glandular, 2d or 3d year epidermis exfoliating, periderm shiny maroon or dark red, aging into light to dark gray or nearly black bark; short shoots (usually predominant) 0.2–3 cm; water-sprout shoots very rare, 5–15 cm. Leaves: petiole often absent, sometimes obscured by decurrent leaf base; blade maximal width usually from middle distally, chartaceous to coriaceous; long shoots (not predominant): blade obtrullate or broadly obovate to ± ovate, 1–3 × 0.5–1.5 cm, coriaceous, base acute, cuneate or decurrent, margins entire proximally, serrate in distal 1/4–1/2, secondary teeth infrequent, primary and secondary veins slightly protruding abaxially, venation weakly percurrent, apex obtuse, sometimes acute, abaxial surfaces glabrous, glabrate, or pilose, tomentose to villous, sericeous, sessile-or stipitate-glandular, adaxial glabrous or glabrate, puberulent, or short-hirsute, ± sessile-glandular; short shoots (predominant): in fascicles of 3–8, blade obtrullate, 0.3–1.5(–3) × 0.2–1 cm, base cuneate, margins serrate, secondary teeth absent, primary and secondary veins usually protruding abaxially, venation very weakly percurrent, apex obtuse, abaxial surfaces ?whitish (waxes and cutin)?, glabrous or strigose on veins and tomentose to villous or sericeous (in intercostal regions) to densely ?long, white? sericeous, ± sessile-and stipitate-glandular, adaxial glabrous, glabrate, puberulent, velutinous, villous, with scattered longer hairs, usually stipitate-or sessile-glandular; water-sprout shoots: blade 2–3 × 1–2 cm. Inflorescences 10–50-flowered, 2–10 × 1–7 cm; branches puberulent to tomentose, ± stipitate-or sessile-glandular; bracts absent, rarely subtending basal branches, absent distally, usually subtending peduncles, sometimes absent; bracteoles 0.5–2(–3) mm. Flowers 3–4 mm diam.; hypanthium 1.5–2.5 mm diam.; sepals triangular to deltate, 1.3–2.5 mm, apex acute to acuminate, abaxially glabrate, sparsely sessile-glandular or densely villous, glandular; petals white, ovate to elliptic, 1.5–2.5 mm; stamens longer than petals, 2.5–3 mm; carpels 1.3–2 mm. Achenes beige to gray, appearing white from hairs, densely hirsute on edges, sometimes on faces, glands 20–40 per face, sessile.
Life form annual
Growth form shrub
Growth support -
Foliage retention deciduous
Sexuality hermaphrodite
Pollination -
Spread -
Mature width (meter) -
Mature height (meter) 0.3 - 1.0
Root system -
Rooting depth (meter) -
Root diameter (meter) -
Flower color
Blooming months -
Fruit color -
Fruiting months -
Nitrogen fixer -
Photosynthetic pathway -

Environment

Light -
Soil humidity -
Soil texture -
Soil acidity -
Soil nutriment -
Hardiness (USDA) -

Usage

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

Cultivation

Mode -
Germination duration (days) 30 - 180
Germination temperacture (C°) 15 - 18
Germination luminosity -
Germination treatment -
Minimum temperature (C°) -
Optimum temperature (C°) -
Size -
Vigor -
Productivity -

Images

Holodiscus microphyllus unspecified picture
Holodiscus microphyllus unspecified picture

Identifiers

LSID urn:lsid:ipni.org:names:123582-2
WFO ID wfo-0001013184
COL ID 3M8V6
BDTFX ID -
INPN ID -
Wikipedia (EN)
Wikipedia (FR)

Synonyms

Holodiscus microphyllus Sericotheca microphylla Holodiscus discolor var. microphyllus