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streaked arrow grass, three-rib arrow-grass

Habit Plants with fibrous strands of old leaves at base, 6–35 cm.
Leaves

erect from sheath, mostly longer than scapes, 4–35 cm;

sheath 1.1–7.5 cm × 0.7–1 mm, ligule not hoodlike, unlobed;

blade 0.2–5 mm wide, apex round-acute.

Inflorescences

scape green to brown, mostly exceeded by leaves, 4.5–21.5 cm × 0.3–1.6 mm;

racemes 0.6–20.3 × 0.4–1.3 cm;

pedicels 0.4–2.1 × 0.1–0.3 mm.

Flowers

tepals oval to elliptic, 0.6–1 × 0.8–0.9 mm, apex obtuse;

pistils 6, 3 fertile, 3 sterile.

Fruits

fruiting receptacle with wings;

schizocarps globose to broader than long, 1–2 × 1.5–2.3 mm;

mericarps obovate, strongly 3-keeled, 1–1.5 × 0.5–0.9 mm, beak reflexed, ca. 0.2 mm.

Chromosome number

unavailableunknown.

Triglochin striata

Phenology Flowering summer-- and fall.
Habitat Coastal alkaline marshes
Elevation 0–10 m (0–0 ft)
Distribution
from FNA
AL; CA; FL; GA; LA; MS; NC; OR; SC; VA; Mexico; West Indies (Bahamas, Greater Antilles); South America (Argentina, Bolivia, Brazil, Chile, Peru)
[WildflowerSearch map]
[BONAP county map]
Source FNA vol. 22.
Parent taxa Juncaginaceae > Triglochin
Sibling taxa
T. gaspensis, T. maritima, T. palustris
Name authority Ruiz & Pavón: Flora Peruviana 3: 72. 1802 (as striatum)
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