Xyris laxifolia
Xyris tennesseensis
laxleaf yelloweyed grass
Tennessee yelloweyed grass
compact.
ascending, 15–45 cm;
sheaths soft, base pink or red;
blade deep green, linear, flattened, somewhat twisted, 5–10 mm wide, smooth, margins somewhat scabrous.
scape sheaths exceeded by leaves;
scapes linear, terete, distally somewhat compressed, 1 mm wide, 2–5-ribbed, ribs papillate;
spikes ellipsoid to broadly ovoid, 10–15 mm;
fertile bracts (5.5–)6–6.5(–7) mm wide, margins entire, apex rounded.
lateral sepals included, slightly curved, (4.5–)5 mm wide, keel scarious, lacerate;
petals unfolding midday, blade obovate, 4.5 mm;
staminodes bearded.
opaque, ellipsoid, 0.5-0.6 mm, finely and irregularly ridged.
= 18.
Xyris laxifolia
Xyris tennesseensis
Varieties 2 (1 in the flora).
(Discussion copyrighted by Flora of North America; reprinted with permission.)
Xyris tennesseensis is unusual in habitat since because its sites are usually basic and its associates are fen or basic soil plants.
Of conservation concern.
(Discussion copyrighted by Flora of North America; reprinted with permission.)
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