Triodia scariosa N.T.Burb.

Species

Angiosperms > Poales > Poaceae > Triodia

Characteristics

Plants forming compact hummocks, 0.3–0.6 m high, stoloniferous. Flowering culms 0.45–1 m high. Leaves: sheaths glabrous or sparsely hairy, or basal sheaths hirsute; orifice with short soft cilia; blade straight, folded, 4–27 cm long, 0.7–1.3 mm wide, closely nerved abaxially, scabrous-papillose adaxially, sometimes glaucous. Panicles contracted, often linear, 7–46 cm long, 1–3 cm wide, with branches to 8.5 cm long. Spikelets: some solitary and some paired, linear-oblong to elliptic, 5–26 mm long, 2–9 mm wide, loosely 3–13-flowered; pedicel 1–16 mm long, those of paired spikelets very unequal; rachilla internodes c. 1.5 mm long. Glumes ±equal, lanceolate or oblong, 5–11 mm long, usually acute or acuminate (sometimes obtuse), entire or notched, muticous, scarious to cartilaginous, 3–5-nerved, glabrous. Callus 0.5–0.7 mm long, obtuse, shortly bearded. Basal lemma oblong to lanceolate, (3–) 6–11 mm long, obtuse to unevenly emarginate, or with 2 lobes less than 0.7 mm long, sometimes mucronate from sinus, scarious or cartilaginous, 3-nerved, hirsute on lower part; margins hyaline to membranous. Palea shorter than lemma body (or to slightly longer in upper florets), thickened and smooth basally, entire or minutely 2-lobed, membranous or scarious; body usually hirsute near base; flaps ciliate. Anthers 2.8–5 mm long.
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Plants forming hummocks 0.3–0.45 m high, to 2 m wide. Flowering culms to 1 m high. Leaves: sheath scaberulous between nerves; orifice ciliolate; blade straight, folded, 11–30 cm long, 0.7–1 mm wide, scabrous, pungent-pointed. Panicles usually dense, (9–) 15–18 (–27) cm long, 1–2 cm wide; axis subterete; branches to 2.2 cm long, sometimes translucently dotted. Spikelets borne on lateral branches only, oblong or cuneate-elliptic, 13–20 mm long, 4–10 mm wide, closely 5–8-flowered; pedicel 3–20 mm long. Glumes ±equal, oblong, 8.5–14 mm long, acuminate, entire, muticous or mucronulate, cartilaginous, glabrous; lower glume 5–7 (–9)-nerved, carinate; upper glume 3 (–9)-nerved, rounded in lower part, carinate upwards. Callus minute, blunt, bearded with hairs 2–3 mm long. Basal lemma lanceolate, 9–10 mm long, with 2 small blunt (sometimes emarginate) lobes, with or without a mucro about 0.8 mm long in sinus, cartilaginous, usually 9-nerved (in 3 groups of 3), hirsute near lower margins and midnerve; margins narrow, membranous. Palea not more than 1 mm shorter than lemma, minutely 2-lobed, cartilaginous, membranous or hyaline, usually hirsute near base. Anthers c. 4 mm long.
Life form perennial
Growth form herb
Growth support free-standing
Foliage retention -
Sexuality hermaphrodite
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Mature height (meter) 0.3 - 0.53
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Nitrogen fixer -
Photosynthetic pathway c4

Environment

Grows on stonyhillslopes in skeletal soils, on flood plains, sandhills and interdunes, indeep sands, brown sands and loams, and soils on limestone. 
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Grows in a range of red, yellow orbrown, calcareous or clayey or siliceous soil in a very wide range of coastalto eremaean habitats. 
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Hardiness (USDA) 8-12

Usage

Uses animal food environmental use fuel
Edible -
Therapeutic use -
Human toxicity -
Animal toxicity -

Cultivation

Mode -
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Images

Triodia scariosa unspecified picture

Distribution

Triodia scariosa world distribution map, present in Australia

Identifiers

LSID urn:lsid:ipni.org:names:424893-1
WFO ID wfo-0000904664
COL ID 58VVR
BDTFX ID -
INPN ID -
Wikipedia (EN) Link
Wikipedia (FR)

Synonyms

Triodia truncata Triodia bunicola Triodia irritans var. laxispicata Triodia scariosa subsp. bunicola Triodia scariosa subsp. yelarbonensis Triodia scariosa