Cladium jamaicense

Crantz

Inst. Rei Herb. 1: 362. 1766.

Illustrated
Synonyms: Cladium mariscus subsp. jamaicense (Crantz) Kükenthal Schoenus cladium Swartz
Treatment appears in FNA Volume 23. Mentioned on page 241.

Rhizomes to 20 cm × 10 mm. Culms 1–3 m × 5–10 mm. Leaves: blades flat to broadly V-shaped, 5–11 mm wide, margins and midvein abaxially harshly scabrous with teeth visible to unaided eye. Inflorescences terminal (or lateral and terminal), 30–50 cm; 1st, 2d, 3d, and some 4th order branches, branches slightly flexuous. Spikelets in groups of 2–3 (–6), narrowly ellipsoid to lanceolate; floral scales 5–6, the proximal chestnut-brown, ovate to oblong-lanceolate, 2.5–3 × 2 mm, midvein conspicuous, lateral-veins weak; stamens 2; anthers 2 mm, connective apices 0.1–0.2 mm; styles 2–2.5 mm; stigmas 1–1.5 mm. Achenes light greenish brown, ovoid, 2 × 1 mm, glossy, base vaguely 3-lobed, truncate, not flared or discoid, apex acute, irregularly rugulose longitudinally.


Phenology: Fruiting spring–summer.
Habitat: Coastal brackish and fresh marshes
Elevation: 0–100 m

Distribution

V23 431-distribution-map.jpg

Ala., Ark., Fla., Ga., La., Miss., N.C., S.C., Tex., Va., Mexico, West Indies, Central America, n South America

Discussion

Cladium jamaicense is important as the dominant species in much of the Florida Everglades (K. K. Steward and W. H. Ornes 1975).

Selected References

None.

Lower Taxa

None.
... more about "Cladium jamaicense"
brown +  and light greenish +
2 cm20 mm <br />0.02 m <br /> (?) +
2 cm20 mm <br />0.02 m <br /> (?) +
rugulose +
Gordon C. Tucker +
Crantz +
shortened +
persistent +
discoid +, not flared +, truncate +  and 3-lobed +
Mariscus +
flat +  and broadly v-shaped +
5mm;11mm +
glumaceous +  and foliaceous +
2-ranked +  and arranged +
ascending +  and appressed +
parallel +  and divergent +
terete +, rolled +  and plicate +
100 cm1,000 mm <br />1 m <br /> (300 cm3,000 mm <br />3 m <br />) +
rounded-trigonous +  and terete +
5mm;10mm +
Ala. +, Ark. +, Fla. +, Ga. +, La. +, Miss. +, N.C. +, S.C. +, Tex. +, Va. +, Mexico +, West Indies +, Central America +  and n South America +
0–100 m +
hypogynous +  and subtending +
biconvex +  and trigonous +
Coastal brackish and fresh marshes +
30 cm300 mm <br />0.3 m <br /> (50 cm500 mm <br />0.5 m <br />) +
multi-ranked +, 2-ranked +, 3-ranked +  and alternate +
with (1-)3-6(-30) bristles and/or scales +
Fruiting spring–summer. +
2-3(-4)-carpellate +
3 (?) +  and 1 (?) +
0.25 cm2.5 mm <br />0.0025 m <br /> (0.3 cm3 mm <br />0.003 m <br />) +
2 cm20 mm <br />0.02 m <br /> (?) +
Inst. Rei Herb. +
0cm +  and 20cm +
10 cm100 mm <br />0.1 m <br /> (?) +
adventitious +
basal +  and proximal +
2-keeled +
cylindric +
W1 +  and Illustrated +
100 +  and 1000 +
narrowly ellipsoid;lanceolate +
septate +, hollow +  and solid +
compressed +, terete +  and trigonous +
papillate +
0.1 cm1 mm <br />0.001 m <br /> (0.15 cm1.5 mm <br />0.0015 m <br />) +
0.2 cm2 mm <br />0.002 m <br /> (0.25 cm2.5 mm <br />0.0025 m <br />) +
Cladium mariscus subsp. jamaicense +  and Schoenus cladium +
Cladium jamaicense +
species +
stoloniferous +  and rhizomatous +
herb +, not +  and cespitose +