Plant Database (by name)

sulphur-flower buckwheat - Eriogonum umbellatum Torr. var. dichrocephalum Gandog.

sulphur-flower buckwheat - Eriogonum umbellatum Torr. var. ellipticum (Nutt.) Reveal

sulphur-flower buckwheat - Eriogonum umbellatum Torr. var. modocense (Greene) S. Stokes

sulphur-flower buckwheat - Eriogonum umbellatum Torr. var. nevadense Gandog.

sulphur-flower buckwheat - Eriogonum umbellatum Torr. var. umbellatum

sulphur-flower buckwheat - Eriogonum umbellatum Torr. var. versicolor S. Stokes

sumac - Rhus L.

summer coralroot - Corallorhiza maculata (Raf.) Raf.

summer grape - Vitis aestivalis Michx.

summer grape - Vitis aestivalis Michx. var. bicolor Deam

summer holly - Comarostaphylis diversifolia (Parry) Greene

summer holly - Comarostaphylis diversifolia (Parry) Greene ssp. planifolia (Jepson) G. Wallace ex Thorne

summer lupine - Lupinus formosus Greene var. robustus C.P. Sm.

summer milkvetch - Astragalus hyalinus M.E. Jones

summer savory - Satureja hortensis L.

summer sedge - Carex aestivalis M.A. Curtis ex Gray

summer snowflake - Leucojum aestivum L.

sunbright - Phemeranthus parviflorus (Nutt.) Kiger

sundial lupine - Lupinus perennis L.

sundrops - Calylophus Spach

sunflower - Helianthus L.

sunflower mule-ears - Wyethia helianthoides Nutt.

sunn hemp - Crotalaria juncea L.

Sunset Crater beardtongue - Penstemon clutei A. Nels.

superb beardtongue - Penstemon superbus A. Nels.

surefoot buttercup - Ranunculus pedatifidus Sm.

Surinam cherry - Eugenia uniflora L.

Swallen's curly-mesquite - Hilaria swallenii Cory

Swallen's lovegrass - Eragrostis swallenii A.S. Hitchc.

swamp azalea - Rhododendron viscosum (L.) Torr.

swamp bay - Persea palustris (Raf.) Sarg.

swamp chestnut oak - Quercus michauxii Nutt.

swamp cottonwood - Populus heterophylla L.

swamp cranberry - Oxydendrum DC.

swamp dock - Rumex verticillatus L.

swamp doghobble - Eubotrys racemosa (L.) Nutt.

swamp fly honeysuckle - Lonicera oblongifolia (Goldie) Hook.

swamp leather flower - Clematis crispa L.

swamp loosestrife - Decodon verticillatus (L.) Ell.

swamp lousewort - Pedicularis lanceolata Michx.

swamp milkweed - Asclepias incarnata L.

swamp milkweed - Asclepias incarnata L. ssp. pulchra (Ehrh. ex Willd.) Woods.

swamp pricklegrass - Crypsis schoenoides (L.) Lam.

swamp rose - Rosa palustris Marsh.

swamp smartweed - Polygonum hydropiperoides Michx.

swamp sunflower - Helianthus angustifolius L.

swamp thistle - Cirsium muticum Michx.

swamp titi - Cyrilla racemiflora L.

swamp tupelo - Nyssa biflora Walt.

swamp verbena - Verbena hastata L.