Index / States / Louisiana / St. Helena
§1County listing — Louisiana
St. Helena County
Louisiana
- FIPS
- 22091
- Taxa recorded
- 1,274
- State
- Louisiana
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Showing 1,101–1,150 of 1,274.
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Solidago rugosa Mill. ssp. rugosa var. rugosa Native SORUR2wrinkleleaf goldenrod · Asteraceae -
Soliva sessilis Ruiz & Pav. Introduced SOSE2field burrweed · Asteraceae -
Sonchus asper (L.) Hill Introduced SOASspiny sowthistle · Asteraceae -
Sonchus oleraceus L. Introduced SOOLcommon sowthistle · Asteraceae -
Sorghastrum elliottii (C. Mohr) Nash Native SOEL3slender Indiangrass · Poaceae -
Sorghastrum nutans (L.) Nash Native SONU2Indiangrass · Poaceae -
Sorghum bicolor (L.) Moench Introduced SOBI2sorghum · Poaceae -
Sorghum halepense (L.) Pers. Introduced SOHAJohnsongrass · Poaceae -
Sparganium americanum Nutt. Native SPAMAmerican bur-reed · Sparganiaceae -
Sphenoclea zeylanica Gaertn. Introduced SPZEchickenspike · Sphenocleaceae -
Sphenopholis filiformis (Chapm.) Scribn. Native SPFIlongleaf wedgescale · Poaceae -
Sphenopholis nitida (Biehler) Scribn. Native SPNIshiny wedgescale · Poaceae -
Sphenopholis obtusata (Michx.) Scribn. Native SPOBprairie wedgescale · Poaceae -
Spigelia marilandica (L.) L. Native SPMA3woodland pinkroot · Loganiaceae -
Spiranthes cernua (L.) Rich. Native SPCEnodding lady's tresses · Orchidaceae -
Spiranthes lacera (Raf.) Raf. Native SPLA4northern slender lady's tresses · Orchidaceae - Spiranthes lacera (Raf.) Raf. var. gracilis (Bigelow) Luer Native SPLAGnorthern slender lady's tresses · Orchidaceae
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Spiranthes laciniata (Small) Ames Native SPLA3lacelip lady's tresses · Orchidaceae -
Spiranthes longilabris Lindl. Native SPLO2giantspiral lady's tresses · Orchidaceae -
Spiranthes odorata (Nutt.) Lindl. Native SPODmarsh lady's tresses · Orchidaceae -
Spiranthes ovalis Lindl. Native SPOVOctober lady's tresses · Orchidaceae -
Spiranthes praecox (Walter) S. Watson Native SPPR2greenvein lady's tresses · Orchidaceae -
Spiranthes tuberosa Raf. Native SPTUlittle lady's tresses · Orchidaceae -
Spiranthes vernalis Engelm. & A. Gray Native SPVEspring lady's tresses · Orchidaceae -
Sporobolus indicus (L.) R. Br. Introduced SPIN4smut grass · Poaceae - Sporobolus indicus (L.) R. Br. var. indicus Introduced SPINI2smut grass · Poaceae
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Sporobolus junceus (P. Beauv.) Kunth Native SPJUpineywoods dropseed · Poaceae -
Stachys crenata Raf. Native STCR7mousesear · Lamiaceae -
Stachys floridana Shuttlw. ex Benth. Native STFL4Florida hedgenettle · Lamiaceae -
Stachys tenuifolia Willd. Native STTEsmooth hedgenettle · Lamiaceae -
Steinchisma hians (Elliott) Nash Native STHI3gaping grass · Poaceae -
Stellaria media (L.) Vill. Introduced STME2common chickweed · Caryophyllaceae - Stellaria media (L.) Vill. ssp. media Introduced STMEMcommon chickweed · Caryophyllaceae
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Stenotaphrum secundatum (Walter) Kuntze Native STSESt. Augustine grass · Poaceae -
Stewartia malacodendron L. Native STMAsilky camellia · Theaceae -
Strophostyles helvola (L.) Elliott Native STHE9amberique-bean · Fabaceae -
Strophostyles umbellata (Muhl. ex Willd.) Britton Native STUM2pink fuzzybean · Fabaceae -
Stylisma humistrata (Walter) Chapm. Native STHU2southern dawnflower · Convolvulaceae -
Stylodon carneus (Medik.) Moldenke Native STCA6Carolina false vervain · Verbenaceae -
Stylosanthes biflora (L.) Britton, Sterns & Poggenb. Native STBI2sidebeak pencilflower · Fabaceae -
Styrax americanus Lam. Native STAM4American snowbell · Styracaceae -
Styrax grandifolius Aiton Native STGR4bigleaf snowbell · Styracaceae -
Symphyotrichum adnatum (Nutt.) G.L. Nesom Native SYADscaleleaf aster · Asteraceae -
Symphyotrichum concolor (L.) G.L. Nesom Native SYCO3eastern silver aster · Asteraceae -
Symphyotrichum drummondii (Lindl.) G.L. Nesom Native SYDRDrummond's aster · Asteraceae - Symphyotrichum drummondii (Lindl.) G.L. Nesom var. drummondii Native SYDRDDrummond's aster · Asteraceae
- Symphyotrichum drummondii (Lindl.) G.L. Nesom var. texanum (Burgess) G.L. Nesom Native SYDRTDrummond's aster · Asteraceae
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Symphyotrichum dumosum (L.) G.L. Nesom Native SYDU2rice button aster · Asteraceae -
Symphyotrichum lateriflorum (L.) Á. Löve & D. Löve Native SYLA4calico aster · Asteraceae - Symphyotrichum lateriflorum (L.) Á. Löve & D. Löve var. lateriflorum Native SYLAL7calico aster · Asteraceae