| Monocotyledon | Literature for Schoenoplectus tabernaemontani
Wagner et al., 1990, 1999. |
| Cyperaceae -- The Sedge Family | Bibliography |
| Schoenoplectus tabernaemontani | |
Common name(s): `aka`akai, `aka`akai naku, great bulrush, kaluha, naku, nanaku, neki |
| General Information | ||
|---|---|---|
| Distribution | Widely distributed in north temperate regions and on tropical high mountains of North and South America, Pacific islands, Australia, Malesia, and southern AsiaIn the Hawaiian Islands, indigenous to Ni`ihau, Kaua`i, O`ahu, Moloka`i, Maui, Hawai`i. |
|
| Habitat | Freshwater rivers or lakes | |
| Elevation | 600-1070 m |
|
| Habit |
Perennial with coarse, horizontally creeping rhizomes 0.8-1.5 cm in diameter; culms solitary or few together, arising in a row along the rhizome, dull green, terete, not nodose, 70-300 cm tall, 5-10 mm in diameter below. |
|
| Leaves |
Leaves reduced to 3-5 bladeless sheaths, or with blades up to 10 cm long; sheaths 10-40 cm long, the lower ones dusky brown, soon disintegrating into reticulate fibers, the upper ones pale green, the orifice oblique. |
|
| Flowers |
Inflorescences anthelate, compound to partially decompound, recurved to nodding, with numerous spikelets, the primary rays 3-8, 1-6 cm long, secondary rays up to 2 cm long; involucral bracts 2-3, the lowest one subulate, erect, 1-3 cm long, the other bract(s) membranous, scale like; spikelets solitary and/or in clusters of 2-3, rusty brown, ovoid to ovoid ellipsoid, 6-15 mm long, 3-4 mm wide, acute; glumes ovate to elliptic, 2.5-3.2 mm long, membranous, ± with reddish brown resinous spots on upper median portion, margins broadly white hyaline, ciliate toward apex, the green midnerve prolonged as a mucro at the obtuse to shallowly emarginate apex; bristles 2-5, shorter than to as long as the achene, retrorsely spinulose scabrous; stigmas 2. |
|
| Fruit |
Achenes grayish brown, broadly ovoid, 1.8-2.5 mm long, plano convex. |
|
| Chromosomes |
2n = 38, 40, 42 |
|
| Contributor |
Nancy Khan |