Poa cita Edgar

Silver tussock (en)

Species

Angiosperms > Poales > Poaceae > Poa

Characteristics

Dense rather shining tussock, 30-100 cm, sometimes hanging down steep banks and up to 2 m, with light brownish green sometimes glaucous leaves smooth to the touch; branching intravaginal; leaf-blades persistent. Leaf-sheath pale green, later creamy brown, shining, ± membranous, smooth, or very minutely scabrid throughout, ribs inconspicuous. Ligule c. 0.5 mm, truncate, short-ciliate, abaxially minutely hairy. Leaf-blade (10)-20-60 cm ×c. 1-1.5-(2.5) mm, folded or ± flat, coriaceous, abaxially glabrous, midrib and lateral ribs not very prominent, adaxially closely minutely pubescent throughout; margins inrolled, scabrid, midnerve scabrid near acicular, often pungent tip. Culm (10)-20-50-(70) cm, ≤ leaves, internodes smooth to scabrid below panicle. Panicle (5)-10-20-(25) cm, open; branches slender, ± erect to spreading, sparsely to very closely scabrid, naked below, spikelets many on shorter secondary branchlets. Spikelets (3.5)-6-9 mm, (2)-3-5-flowered, light green to later light brown. Glumes subequal, (2)-3.5-5-(6) mm, acute to subacuminate, sparsely minutely scabrid to smooth, midnerve with sparse prickle-teeth in upper ½; lower 1-(3)-nerved, narrow-lanceolate, upper 3-(5)-nerved, elliptic-lanceolate; margins membranous with scattered fine prickle-teeth above or almost throughout. Lemma 3-5-(6) mm, 5-nerved, elliptic-oblong, obtuse, minutely scabrid, midnerve with long crinkled hairs in lower ½, scabrid above, outer lateral nerves with crinkled hairs near base; margins membranous, sparsely minutely scabrid. Palea (2)-3-4 mm, keels densely ciliate-scabrid, interkeel minutely scabrid to pubescent-scabrid, flanks short-scabrid. Callus with tuft of crinkled hairs. Rachilla c. 1 mm, scabrid or with occasional hairs. Lodicules c. 0.5 mm, occasionally hair-tipped. Anthers (1)-2-3 mm. Caryopsis c. 1 × 0.5 mm. 2n= 84. Plate 7D.
Life form perennial
Growth form herb
Growth support free-standing
Foliage retention -
Sexuality hermaphrodite
Pollination -
Spread -
Mature width (meter) -
Mature height (meter) 0.3 - 1.0
Root system -
Rooting depth (meter) -
Root diameter (meter) 0.1
Flower color -
Blooming months -
Fruit color -
Fruiting months -
Nitrogen fixer -
Photosynthetic pathway c3

Environment

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

Usage

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

Cultivation

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

Images

Poa cita unspecified picture
Poa cita unspecified picture

Distribution

Poa cita world distribution map, present in New Zealand

Identifiers

LSID urn:lsid:ipni.org:names:940888-1
WFO ID wfo-0000891970
COL ID 4KLJD
BDTFX ID -
INPN ID -
Wikipedia (EN) Link
Wikipedia (FR)

Synonyms

Poa cita Poa caespitosa Poa caespitosa var. leioclada Poa caespitosa var. planifolia Poa laevis var. filifolia