Rubus phoenicolasius (wineberry raspberry) 231 --
Rubus recurvicaulis (Blanchard's dewberry) 232 -- rooting; cliffs, disturbed sandy habitats; trifoliate
Rubus setosus (bristly blackberry) 232 -- not much armature; stem and lf stalks bristly
Rubus sp. (blackberry) Rosaceae (5 5 N 1 peri/epi) -- Rudbeckia fulgida (eastern coneflower) 495 --
Rudbeckia heliopsidis (piney woods coneflower) 496 --
Rudbeckia hirta var. pulcherrima (black-eyed susan) 495 -- pappus none; lf football shape, very hairy
Rudbeckia hirta var. speciosa (black-eyed susan) 495 -- oval, coarsely toothed
Rudbeckia laciniata (green-headed coneflower) 497 -- lvs very cut
Rudbeckia sp. (coneflower) Asteraceae/Heliantheae --
Rudbeckia subtomentosa (sweet coneflower) 496 -- lvs tri-lobed
Rudbeckia triloba (thin-leaved coneflower) 496 -- lvs tri-lobed, very hairy
Ruellia caroliniensis (Carolina ruellia) Acanthaceae ((5) (5) 4 1 hypo) 460 --
Ruellia humilis (low ruellia) Acanthaceae ((5) (5) 4 1 hypo) 460 --
Ruellia pedunculata (panicled ruellia) Acanthaceae ((5) (5) 4 1 hypo) 459 -- fls blue-lavender
Ruellia strepens (rustling ruellia) Acanthaceae ((5) (5) 4 1 hypo) 459 -- moist woods
Rumex acetosella (field sorrel) 113
Rumex altissimus (pale dock) 114
Rumex conglomeratus (clustered dock) 115
Rumex crispus (curled dock) 114 -- wavy margin lvs; fr edges merely curved
Rumex maritimus (golden dock) 115 -- wavy margin lvs;
Rumex obtusifolius (broad-leaved dock) 115 -- wavy margin lvs; fr edges w/ curled appendages
Rumex orbiculatus (great water dock) Polygonaceae -- flat lvs
Rumex pallidus (white dock) 114 -- flat lvs, whitish bloom
Rumex patientia (patience dock) 114
Rumex pulcher (fiddle dock) 114
Rumex salicifolius (willow-leaved dock) 114
Rumex sp. (dock) Polygonaceae (0 3+3 6 3 perf/unisex) --
Rumex verticillatus (swamp dock) 114 -- flat lvs
Ruppia maritima (ditch grass) Ruppiaceae (0 0 2 4) 613 -- inconsp fls; lvs linear; saline or brackish water
Ruta graveolens (common rue) Rutaceae (4or5 4or5 8or10 1) 336 -- greenish-yellow inflex pets
Rutaceae (rue) -- Ptelea (hop tree), Ruta (rue), Zanthoxylum (prickly ash)
S
Sabatia angularis (angled marsh pink) Gentianaceae ((5) 5 5 1) 362 -- 5 pink fls; branches chiefly opp.; OE lvs
Sabatia campanulata (slender marsh pink) Gentianaceae ((5) 5 5 1) 362 -- 5 pink w/ yellow eye fls; branches of infl alt; OE lvs
Sabatia difformis (marsh pink) Gentianaceae ((5) 5 5 1) 362 -- 5 white fls; branches opp; OE lvs; wet pine barrens
Sabatia dodecandra (twelve-stemmed marsh pink) Gentianaceae ((9-12) 9-12 9-12 1) 363 -- 9-12 fls, pink, red & yellow at base; OE lvs
Sabatia kennedyana (Kennedy's marsh pink) Gentianaceae ((9-12) 9-12 9-12 1) 363 -- 9-12 fls, pink, red & yellow at base; cal lobes linear; OE lvs
Sabatia stellaris (annual marsh pink) Gentianaceae ((5) 5 5 1) 363 -- 5 pink w/ yellow eye fls; branches of infl alt; OE lvs; salt/brachish marshes
Sagina decumbens (pearlwort) Caryophyllaceae (5 5 10 10) 100 -- 3-10 cm; w/o persistent basal rosette
Sagina nodosa (pearlwort) Caryophyllaceae (5 5 10 10) 100 -- petals nearly twice as long as sepals; 5-15 cm
Sagina procumbens (pearlwort) Caryophyllaceae (4 4 8 8) 100 -- 2-10 cm; often w/ basal rosette; lvs mucronate or shortly aristate
Sagittaria australis (broad-leaved arrowhead) 604 --
Sagittaria cuneata (northern arrowhead) 604 --
Sagittaria engelmanniana (Engelmann's arrowhead) 603 --
Sagittaria graminea (grass-leaved arrowhead) 605 -- lvs not arrow-shaped
Sagittaria latifolia (broad-leaved arrowhead) 604 --
Sagittaria rigida (sessile-fruited arrowhead) 603 --
Sagittaria sp. (arrowhead) Alismataceae (3 3 7-N 0/3 3 0 ?) --
Sagittaria spathulata (tidal arrowhead) 602 -- lvs not arrow-shaped; lvs round & septate
Sagittaria subcordatum (somewhat heart-shaped arrowhead) 603 --
Sagittaria subulata (Hudson arrowhead) 602 -- lvs not arrow-shaped; lvs round & septate
Sagittaria teres (quill-leaved arrowhead) 605 -- lvs not arrow-shaped Salicaceae (willow) -- Populus (poplar); Salix (willow)
Salicornia bigelovii (dwarf glasswort) Chenopodiaceae (0 5 1or2 2 perf or pistillate) 093 -- scales below the spike mucronate
Salicornia europaea (European glasswort) Chenopodiaceae (0 5 1or2 2 perf or pistillate) 093 -- spike joints not as evident, mostly longer than thick
Salicornia virginica (Virginia glasswort) Chenopodiaceae (0 5 1or2 2 perf or pistillate) 092 -- single stems from rhizome
Salix alba (white willow) 155 -- glabrous fr; sparingly escaped
Salix amygdaloides (peach-leaf willow) Salicaceae (0 x 3-8 2stigmas) -- shrub or tree; glabrous fr;
Salix babylonica (weeping willow) 156 -- glabrous fr; twigs pendulous
Salix bebbiana (beaked willow) 156 -- shrub/small tree; pbscnt fr; lvs egg, glaucous & rugose beneath; twigs brownish
Salix candida (willow) -- shrub; pubescent fr;
Salix caprea (goat willow) -- lvs broad-ovate to oblong to 4"; sl toothed or entire; gray pubescent beneath; catkins before lvs
Salix discolor (pussy willow) 159 -- shrub/small tree; pubescent fr; lvs variable, softly hairy beneath; branches reddish
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