Spring Flora of Oklahoma 
11 
Stem perennial, woody, usually armed with prickles. 
Leaves glaucous. 2. S. glauca. 
Leaves green on both sides. 
Leaves rounded or lanceolate, 5-nerved. 
3. S. Rotundifolia. 
Leaves ovate, 7-nerved. 4. S. hispida. 
Leaves round-ovate, often narrowed at the middle, 
7-9-nerved. 5. S. Pseudo-China . 
Leaves deltoid or deltoid-hastate, 5-7-nerved, often 
with 1 or 2 additional nerves on each side. 
6. S. Bona-nox. 
1. Smilax herbacea L. Carrion-flower. Stem glabrous, un¬ 
armed, much branched. Leaves ovate, rounded or lanceolate, acute, 
acuminate or cuspidate at the apex, obtuse or cordate at the base. 
7-9-nerved, margins entire or denticulate. Flowers carrion-scented 
when open. Berries bluish black, 3"-4" in diameter. 
In woods and thickets. Collected by A. H. Van Vleet. April-June. 
2. Smilax glauca Walt. Glaucous-leaved Greenbrier. Stem 
terete. Branches and twigs angled, armed with rather stout, nu¬ 
merous, or scattered prickles, or sometimes unarmed. Petioles 3"-6" 
long, tendril-bearing. Leaves ovate, acute or cuspidate at the apex, 
sometimes cordate at the base, entire, glaucous beneath and some¬ 
times also above, mostly 5-nerved, umbels 6-12-flowered. Berries 
bluish black, ripening the first year, about 3" in diameter, 2-3- 
seeded. 
In thickets. May-June. 
3. Smilax rotundifolia L. Greenbrier. Stem woody, terete, 
the branches and young shoots often 4-angled, glabrous. Prickles 
scattered, stout, straight or a little curved, sometimes none. Leaves 
ovate, nearly orbicular, or lanceolate, acute or acuminate at the 
apex, obtuse or cordate at the base, entire or the margins erose- 
denticulate, 5-nerved. Umbels 6-25-flowered. Perianth-segments 
pubescent at the tip. Berries black, 1-3-seeded, about 3" in di¬ 
ameter. Maturing the first year. 
In woods and thickets. Common. April-June. 
4. Smilax liispida Muhl. Hispid Greenbrier. Stem terete be¬ 
low, glabrous, and commonly thickly hispid with numerous, slender, 
straight prickles, the branches more or less angled. Leaves ovate, 
abruptly acute and cuspidate at the apex, obtuse or sub-cordate at 
the base, 7-nerved, or the older ones sometimes with an additional 
pair of faint nerves, the margins usually denticulate. Umbels 10- 
