Carex petriei Cheeseman

Species

Angiosperms > Poales > Cyperaceae > Carex

Characteristics

Tufts dense, erect or loosely spreading, red. Culms (6)–10–25–(35) cm. × 0.5–1 mm., glab., terete or flattened; basal sheaths light brown, occ. reddish. Lvs us. slightly > culms, 0.5–2 mm. wide, pink or greenish red, lamina narrow-linear, concavo-convex, grooved on the back, two conspicuous nerves on the upper surface, margins scabrid, tips acute, curled and twisted when dry; sheaths very wide, c. three times width of lamina. Spikes 3–6, dark red-brown, ± approximate but the lowest us. more distant on stiff, erect peduncles; terminal spike male; remaining spikes female, occ. with a few male fls above, 1–3 cm. × 3–6 mm. Glumes < or occ. > utricles, very pale brown, membr., margins often lacerate, tip acute or the midrib produced to a long scabrid awn. Utricles c. 2.5 × 1.5 mm., plano-convex, turgid, very dark red to almost black but paler towards the tip and base, or rarely light brown throughout, smooth or faintly nerved; beak slightly > 0.5 mm. long, orifice shallowly bifid, often finely scabrid, light brown; stipe c. 0.5 mm. long, us. cream. Stigmas 3. Nut c. 1.5 mm. long, trigonous, oblong-obovoid, dull brown.
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Dense red tufts to ± 30 cm high. Leaves concavo-convex, tips twisted when dry, sheaths ± 3 times wider than lamina. Female spikes 3-4, very dark red, ± 5 cm × 5 mm, lowest usually distant on stiff peduncles. Glumes light brown. Utricles almost black. Stigmas 3.
Life form perennial
Growth form herb
Growth support free-standing
Foliage retention evergreen
Sexuality -
Pollination -
Spread -
Mature width (meter) 0.1 - 0.5
Mature height (meter) 0.1 - 0.4
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 4-9
Soil humidity 5-7
Soil texture -
Soil acidity 2-8
Soil nutriment -
Hardiness (USDA) 9-10

Usage

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

Cultivation

Can be grown by divisions.
Mode divisions
Germination duration (days) -
Germination temperacture (C°) -
Germination luminosity -
Germination treatment -
Minimum temperature (C°) -
Optimum temperature (C°) -
Size -
Vigor -
Productivity -

Images

Carex petriei unspecified picture

Distribution

Carex petriei world distribution map, present in New Zealand

Identifiers

LSID urn:lsid:ipni.org:names:301540-1
WFO ID wfo-0000349981
COL ID RB4Y
BDTFX ID -
INPN ID -
Wikipedia (EN) Link
Wikipedia (FR)

Synonyms

Carex petriei