Flora of North America species comparison

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Paspalum praecox

Paspalum laxum

early paspalum

coconut paspalum
Habit Plants perennial; shortly rhizomatous. Plants perennial; cespitose to short rhizomatous.
Culms

5-160 cm, erect, not rooting at the lower nodes;

nodes glabrous.

80-110 cm, erect;

nodes glabrous.
Sheaths

densely pubescent, occasionally glabrous;

ligules 1-2.2 mm;

blades to 55 cm long, 2.2-8.3 mm wide, conduplicate (occasionally flat), glabrous below, pubescent above.

glabrous, sparsely pubescent apically;

ligules 1-2.9 mm;

blades 9-41 cm long, 3-7 mm wide, mostly involute, pubescent above, glabrous below.
Panicles

terminal, with 2-10 racemosely arranged branches;

branches 0.8-10.3 cm, divergent to spreading, often arcuate, terminating in a spikelet;

branch axes 0.8-2 mm wide, narrowly winged, glabrous, margins scabrous.

terminal, with 1-5(10) racemosely arranged branches;

branches 1.9-11.4 cm, erect to divergent, terminating in a spikelet;

branch axes 0.4-0.7 mm wide, very narrowly winged, scabrous.
Spikelets

2.1-3.1 mm long, 2-2.8 mm wide, paired, imbricate, appressed to divergent from the branch axes, orbicular to suborbicular, stramineous.

1.6-2.2 mm long, 1.1-1.3 mm wide, paired, imbricate, appressed to the branch axes, elliptic-obovate to ovate.
Caryopses

1.9-2.1 mm, brown.

Lower

glumes absent;

upper glumes and lower lemmas glabrous, 3-veined, margins entire;

upper florets white to light yellow.

glumes absent;

upper glumes shortly pubescent, 5-veined, margins entire;

lower lemmas glabrous or shortly pubescent, lacking ribs over the veins, 3-veined, margins entire;

upper florets 1.4-2 mm, white to stramineous.
2n

= 20, 40.

= 60.

Paspalum praecox

Paspalum laxum
Distribution
from FNA
AL; AR; FL; GA; IL; LA; MS; NC; SC; TX; VA
[WildflowerSearch map]
[BONAP county map]
from FNA
FL; PR; Virgin Islands
[BONAP county map]
Discussion

Paspalum praecox grows in pitcher plant bogs, wet pine flatwoods, wet savannahs, prairies, and wet streamhead ecotones. It is restricted to the United States, growing predominantly on the southeastern coastal plain.

(Discussion copyrighted by Flora of North America; reprinted with permission.)

Paspalum laxum grows in hammocks and along roads, often in sandy or limestone soils. It used to be common in coconut groves, hence the English-language name. It grows in southern Florida, the Antilles, and Belize.

(Discussion copyrighted by Flora of North America; reprinted with permission.)
Source FNA vol. 25, p. 597. FNA vol. 25, p. 592.
Parent taxa Poaceae > subfam. Panicoideae > tribe Paniceae > Paspalum Poaceae > subfam. Panicoideae > tribe Paniceae > Paspalum
Sibling taxa
P. acuminatum, P. almum, P. bifidum, P. blodgettii, P. boscianum, P. caespitosum, P. conjugatum, P. conspersum, P. convexum, P. coryphaeum, P. dilatatum, P. dissectum, P. distichum, P. fimbriatum, P. floridanum, P. hartwegianum, P. intermedium, P. laeve, P. langei, P. laxum, P. lividum, P. malacophyllum, P. minus, P. modestum, P. monostachyum, P. nicorae, P. notatum, P. paniculatum, P. pleostachyum, P. plicatulum, P. pubiflorum, P. quadrifarium, P. racemosum, P. repens, P. scrobiculatum, P. setaceum, P. unispicatum, P. urvillei, P. vaginatum, P. virgatum, P. virletii, P. wrightii
P. acuminatum, P. almum, P. bifidum, P. blodgettii, P. boscianum, P. caespitosum, P. conjugatum, P. conspersum, P. convexum, P. coryphaeum, P. dilatatum, P. dissectum, P. distichum, P. fimbriatum, P. floridanum, P. hartwegianum, P. intermedium, P. laeve, P. langei, P. lividum, P. malacophyllum, P. minus, P. modestum, P. monostachyum, P. nicorae, P. notatum, P. paniculatum, P. pleostachyum, P. plicatulum, P. praecox, P. pubiflorum, P. quadrifarium, P. racemosum, P. repens, P. scrobiculatum, P. setaceum, P. unispicatum, P. urvillei, P. vaginatum, P. virgatum, P. virletii, P. wrightii
Synonyms P. praecox var. curtisianum, P. lentiferum
Name authority Walter Lam.
Web links 
Unless otherwise noted, all data comes from the online version of the Flora of North America, who have made most of their content available via a Creative Commons license (CC BY 4.0).



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