supported by molecular data (A. E. Senters and D. E. Soltis 2003; L. M. Schultheis and M. J. Donoghue 2004). Subgenus Grossularia (Miller) Persoon appears
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occasionally escape. Some species previously treated within Lavatera (see M. F. Ray 1995, 1998) are here included in Malva based upon molecular evidence
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Families and Genera of Vascular Plants. Berlin etc. Vol. 1, pp. 39--45. Tryon, R. M. and A. F. Tryon. 1982. Ferns and Allied Plants, with Special Reference
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Involucres campanulate to hemispheric, 10–30 mm diam. Phyllaries persistent, 11–45 in 2–4 series (outer broader, foliaceous, inner smaller, thinner, each subtending
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margin. Barkworth, M.E. 1997. Taxonomic and nomenclatural comments on the Triticeae in North America. Phytologia 83:302-311 Barkworth, M.E. 2000. Changing
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(Caryophyllaceae). Pl. Syst. Evol. 206: 411–420. Oxelman, B., M. Lidén, R. K. Rabeler, and M. Popp. 2000. A revised generic classification of the tribe Sileneae
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Elias Landolt WeedyIllustrated Basionym: Lemna oblonga Philippi Linnaea 29: 45. 1857 Treatment appears in FNA Volume 22. Treatment on page 151. Illustrator:
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Central America. Syst. Bot. Monogr. 29: 1–77. Fernald, M. L. 1943c. Notes on Hieracium. Rhodora 45: 317–325. Hieracium abscissum, Hieracium albiflorum, Hieracium
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5–2 m; petals nearly white to pale pink or pale lavender, usually not overlapping; calyces 8–10 mm in fruit. Sidalcea campestris 27 Plants 0.3–1.5 m; petals
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foliosa, Oönopsis multicaulis, Oönopsis wardii (Nuttall) Greene Pittonia 3: 45. 1896. Gregory K. Brown, Guy L. Nesom Etymology: Greek oön, egg, and - opsis
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other hand, has little evidence of sporophyte reduction. Following M. J. Cano and M. T. Gallego (2003), T. bolanderi is included here, as well as the closely
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John Myers Copyright: Flora of North America Association Trees, to 20 (-45) m. Twigs densely tomentose. Leaves convex adaxially, to 120 mm, veins often
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or ± equal to flowers. Calyces 7–11 mm; abaxial and adaxial clefts 3–6 mm, 45–75% of calyx length. Corollas light to bright-yellow, 14–26 mm; tube 13–22
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51, 57, 60, 61, 86, 104, 107, 120, 125, 126, 133. Shrubs or trees, 0.05–20 m, not clonal or, sometimes, clonal by layering or stem fragmentation. Stems
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vivipara subsp. macounii (Small ex J. M. Macoun) Soják Persicaria vivipara Polygonum viviparum var. macounii (Small ex J. M. Macoun) Hultén Treatment appears
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mammillose laminal cells. Depauperate plants of M. arizonicum and M. thomsonii, but also, in a few cases, M. marginatum, have leaves with only a few single
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Onopordum, Plectocephalus, Saussurea, Silybum, Volutaria Cassini Theodore M. Barkley†, Luc Brouillet, John L. Strother Basionym: Asteraceae tribe Cynareae Lamarck
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Zaluzaniinae Cassini J. Phys. Chim. Hist. Nat. Arts 88: 189. 1819. Theodore M. Barkley†, Luc Brouillet, John L. Strother Treatment appears in FNA Volume
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by second day), oblong to ovate, 20–30 (–45) × 8–12 mm; stamens purple, 30–50 mm; anthers 9–10 mm; gynophore 45–80 mm in fruit; ovary 6–10 mm, glabrous;
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subfamily Pooideae. Pp. 265-276 in T.R. Soderstrom, K.W. Hilu, C.S. Campbell and M.E. Barkworth (eds.). Grass Systematics and Evolution. Smithsonian Institution
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