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Smilacaceae

This family contains exactly one genus, Smilax.

Smilax pulverulenta Michx. was reported from RI by Angelo and Boufford (2000). The voucher was misidentified and is S. herbacea—20 Jun 1882, Leland s.n. ( NEBC!). Reference: Holmes (2002).

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S. herbacea
1a. Plants vines (i.e., stems herbaceous), without prickles [Fig. 305]; ovules 2 (rarely 1)  per locule
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1b. Plants lianas (i.e., stems woody), with prickles, especially toward the base; ovule 1  per locule
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  S. glauca
  2a. Leaf blades glaucous on the abaxial surface; anthers longer than filaments
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  2b. Leaf blades not glaucous; anthers equal to or shorter than filaments
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    S. hispida
    3a. Prickles thin, bristly, nearly black at maturity; peduncle 1.5–6.5 cm long; berry  not glaucous
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    S. rotundifolia
    3b. Prickles stout, green with red to dark brown tips at maturity; peduncle 0.5–1.5 cm long; berry glaucous

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