Part 7 - UNC Herbarium

POACEAE 923
Stenotaphrum Trinius (St. Augustine Grass)
A genus of about 7 species, tropical and subtropical. References: Allred in FNA (2003a); Sauer (1972)=Z.
Stenotaphrum secundatum (Walter) Kuntze, St. Augustine Grass, Carpet Grass. Cp (GA, NC, SC): brackish marshes,
roadsides, lawns; common. July-October. A pioneer species of beaches and shores, S. secundatum was known from the
Carolinas prior to 1800. It has been interpreted as native or introduced in our area; its original range is probably now impossible
to determine. Sauer (1972) maps it as widespread along the coasts of s. North America, Central America, South America, the
West Indies, Africa, Australia, and sw. Pacific Islands. In our area it is certainly now more frequently encountered as a lawn or
roadside grass than in anything that could be construed as a natural habitat. The other 6 species in the genus are Asian, or on
islands of the sw. Pacific or Indian Oceans. [= RAB, FNA, HC, K, S, Z]
Stipa
(see Nassella and Piptochaetium)
References: Tucker (1996)=Z; Barkworth (1997)=Y.
Thinopyrum (Prat) Á. Löve
* Thinopyrum intermedium (Host) Barkworth & D.R. Dewey. Pd (GA): waif in railroad yards; rare, introduced from {}.
Tucker (1996) states that the record is as a waif in railroad yards. [= K, Z; = Elytrigia intermedia (Host) Nevski; = Agropyron
intermedium (Host) Palisot de Beauvois] {not keyed at this time; add to synonymy}
* Thinopyrum ponticum (Podp.) Z.W. Liu & R. R.-C. Wang, Tall Wheatgrass. Cp (SC): waste areas near wool-combing
mills; rare, intoduced from {}, not known to be established or persistent. [= K; ? Agropyron elongatum (Host) Palisot de
Beauvois] {not keyed at this time; add to synonymy}
Torreyochloa Church (Pale Mannagrass)
A genus of 4 species, with a classic Tertiary moist temperate disjunct pattern; Torreyochloa is distributed in e. North America
(our taxa), one species in the Pacific Northwest, and two in e. Asia (Tucker 1996). References: Davis (1991)=Y; Tucker
(1996)=Z.
1 Leaf blades 1-3 mm wide; anthers 0.2-0.5 mm long...........................................................................[T. pallida var. fernaldii]
1 Leaf blades 4-8 mm wide; anthers ca. 1 mm long.................................................................................... T. pallida var. pallida
Torreyochloa pallida (Torrey) Church var. pallida, Pale Mannagrass. Mt (GA, NC, VA), Cp (NC, VA), Pd (SC): bogs,
mucky wetlands such as old beaver-ponds, pools in cypress swamps, drawdown shores of natural ponds; rare (GA Special
Concern, NC Rare). June-July. The species as a whole is widespread in e. North America. Var. pallida ranges from Nova
Scotia west to MN, south to e. VA, se. NC (Columbus County), nw. NC (Avery County), and nw. GA (Jones & Coile 1988).
Var. pauciflora (J. Presl) J.J. Davis is distributed in w. North America. Intermediates occur between the varieties. [= K, Y, Z; <
Glyceria pallida (Torrey) Trinius – RAB, GW, HC, W; < Puccinellia pallida (Torrey) Clausen – C; = G. pallida – F; = G.
pallida var. pallida – G; = Panicularia pallida (Torrey) Kuntze – S]
Torreyochloa pallida (Torrey) Church var. fernaldii (A.S. Hitchcock) Dore ex Koyama & Koyama ranges from
Newfoundland west to MN, south to WV and TN. [= K, Y, Z; < Glyceria pallida (Torrey) Trinius – RAB, GW, HC, W; <
Puccinellia pallida (Torrey) Clausen – C; = G. fernaldii (A.S. Hitchcock) St. John – F; = G. pallida var. fernaldii A.S. Hitchcock
– G]
Tragus Haller
* Tragus racemosus (Linnaeus) Allioni, Texas Bur. Cp (NC): on ballast near old seaports; rare, introduced from the Old
World, probably no longer present. [= HC, C, F, G, K]
* Tragus australianus S.T. Blake. Cp (SC): waste areas around wool-combing mills; rare, perhaps only a waif, introduced.
[= K] {not keyed}
* Tragus berteronianus J.A. Schultes. Cp (SC): waste areas around wool-combing mills; rare, perhaps only a waif,
introduced. [= K] {not keyed}
* Tragus heptaneuron W.D. Clayton. Cp (SC): waste areas around wool-combing mills; rare, perhaps only a waif,
introduced. [= K] {not keyed}