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GrassBase - The Online World Grass Flora
Descriptions
W.D. Clayton, M. Vorontsova, K.T. Harman & H. Williamson
© Copyright The Board of Trustees, Royal Botanic Gardens, Kew.
Stipa campylachne
HABIT Perennial; caespitose. Culms erect, or geniculately ascending; 60–80 cm long; 1–2 mm diam.; 2–4 -noded. Culm-internodes terete; distally pubescent. Culm-nodes swollen; pubescent. Leaf-sheaths tight; mostly shorter than adjacent culm internode; ribbed; pubescent to hirsute; outer margin hairy. Leaf-sheath auricles absent, or erect. Ligule a ciliolate membrane; 0.3–0.6 mm long; truncate. Leaf-blades convolute; 15–35 cm long; 1.5–2 mm wide. Leaf-blade surface ribbed; scaberulous; rough adaxially; pubescent to hirsute; hairy on both sides. Leaf-blade margins ciliate. Leaf-blade apex attenuate.
INFLORESCENCE Inflorescence a panicle.
Panicle contracted; linear, or lanceolate; 10–20 cm long; 2–3 cm wide. Primary panicle branches 2–3 cm long. Panicle axis scaberulous. Panicle branches scabrous.
Spikelets solitary. Fertile spikelets pedicelled. Pedicels angular; 2–10 mm long; scabrous.
FERTILE SPIKELETS Spikelets comprising 1 fertile florets; without rhachilla extension. Spikelets lanceolate; subterete; 14–23 mm long; breaking up at maturity; disarticulating below each fertile floret. Floret callus elongated; 2–2.5 mm long; pubescent; pungent. Floret callus hairs 0.2–0.8 mm long.
GLUMES Glumes persistent; similar; exceeding apex of florets; thinner than fertile lemma; gaping. Lower glume lanceolate; 15–23 mm long; 1 length of upper glume; membranous; without keels; 3 -veined. Lower glume surface scabrous. Lower glume apex acuminate. Upper glume lanceolate; 14–18 mm long; membranous; without keels; 5 -veined. Upper glume surface scabrous. Upper glume apex acuminate.
FLORETS Fertile lemma lanceolate; subterete; 8–9 mm long; cartilaginous; without keel. Lemma surface tuberculate; pubescent, or pilose. Lemma margins flat; covering most of palea. Lemma hairs 0.3–1 mm long. Lemma apex awned; 1 -awned. Principal lemma awn bigeniculate; 50–70 mm long overall; with twisted column; limb scaberulous. Middle segment of lemma awn 10 mm long. Column of lemma awn 20 mm long; pubescent to hirsute; with 0.3–1.6 mm long hairs. Palea 1 length of lemma; 2 -veined; without keels.
FLOWER Lodicules 3; 1.6–1.8 mm long. Anthers 3; 2.5–3.5 mm long; anther tip smooth. Stigmas 2.
FRUIT Caryopsis with adherent pericarp; 4–5 mm long. Embryo 0.2 length of caryopsis. Hilum linear; 0.8–1 length of caryopsis.
DISTRIBUTION Australasia: Australia.
NOTES Stipeae. Vickery 2000.
Please cite this publication as detailed in How to Cite Version: 3rd February 2016.
