Petrophytum cinerascens (Piper) Rydb.

Halfshrub rockmat (en)

Species

Angiosperms > Rosales > Rosaceae > Petrophytum

Characteristics

Shrubs, 1–5 dm diam. Stems prostrate to decumbent, 2–8 cm, internodes (0.1–)1(–2) cm. Leaves: blade oblanceolate to obtuse, 1–2.5(–3) × 0.2–0.4(–0.5) cm, palmately 3-veined, venation sometimes visible through hairs, apex obtuse, abaxial surface minutely canescent to strigose or cinereous, ?adaxial sometimes glandular?. Panicles sometimes branched, 2–8(–15) × 1–5 cm, canescent to puberulent; bracts linear to oblanceolate, 5–10 mm, pilose. Pedicels 0.5–2(–4) mm; bracteoles 1(–2), extending from middle to apex of sepals, rarely beyond. Flowers 2–4(–6) mm diam.; hypanthium 1 mm, canescent; sepals erect, ovate or lanceolate, 1–1.5 mm, margins ciliate, abaxial surface pubescent, ?glandular?; petals oblanceolate or narrowly ovate, 1–2.5 mm, apex acute or rounded; stamens 20–25, lengths 1.3 times petals (1.3–1.5 times sepals); carpels (3–)5(–6), distinct. Follicles 2 mm.
Life form perennial
Growth form shrub
Growth support -
Foliage retention
Sexuality hermaphrodite
Pollination -
Spread -
Mature width (meter) -
Mature height (meter) 0.08 - 0.33
Root system -
Rooting depth (meter) -
Root diameter (meter) -
Flower color
Blooming months
JanFebMar
AprMayJun
JulAugSep
OctNovDec
Fruit color -
Fruiting months -
Nitrogen fixer -
Photosynthetic pathway -

Environment

Light 7-9
Soil humidity 1-5
Soil texture 3-6
Soil acidity -
Soil nutriment -
Hardiness (USDA) 5-5

Usage

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

Cultivation

Mode -
Germination duration (days) -
Germination temperacture (C°) -
Germination luminosity -
Germination treatment -
Minimum temperature (C°) -29
Optimum temperature (C°) -
Size -
Vigor -
Productivity -

Images

Petrophytum cinerascens unspecified picture
Petrophytum cinerascens unspecified picture

Distribution

Petrophytum cinerascens world distribution map, present in United States of America

Identifiers

LSID urn:lsid:ipni.org:names:191245-2
WFO ID wfo-0001004577
COL ID 776GS
BDTFX ID -
INPN ID -
Wikipedia (EN) Link
Wikipedia (FR) Link

Synonyms

Luetkea cinerascens Petrophytum cinerascens Spiraea cinerascens