Plants — 23,508 Species

Saint Augustine grass

Stenotaphrum secundatum (Walter) Kuntze

Stenotaphrum secundatum, or St. Augustine grass, is a moisture-loving tropical grass widely used as lawn and pasture grass.

Stemless Mock Goldenweed

Stenotus acaulis (Nutt.) Nutt.

Stenotus acaulis is a perennial tufted or mat-forming herb that produces yellow flower heads.

Tapevine

Stephania japonica (Thunb.) Miers

Stephania japonica is a dioecious prickle-free vine with peltate leaves, widespread across Asia, the Pacific, and eastern Australia.

silver rock-lettuce

Stephanomeria cichoriacea A.Gray

Stephanomeria cichoriacea, also called chicoryleaf wirelettuce, is a California-endemic perennial herb in the Asteraceae family.

San Diego Wirelettuce

Stephanomeria diegensis Gottlieb

Stephanomeria diegensis, or San Diego wirelettuce, is an uncommon homoploid hybrid annual flowering plant native to the California-Baja California coast.

Small Wirelettuce

Stephanomeria exigua Nutt.

Small wirelettuce (Stephanomeria exigua) is a North American native flowering plant, thought to be the parent of the endangered Malheur wirelettuce.

Brownplume Wirelettuce

Stephanomeria pauciflora (Torr.) A.Nelson

Stephanomeria pauciflora is an aster family flowering plant native to the southwestern US and northern Mexico.

narrow-leaved wirelettuce

Stephanomeria tenuifolia (Torr.) H.M.Hall

Stephanomeria tenuifolia is a perennial Asteraceae plant native to the Great Basin and parts of California.

rod wirelettuce

Stephanomeria virgata Benth.

Stephanomeria virgata Benth. is an annual plant with specific growth, leaf, flower, and fruit characteristics.

Jukti

Stephanotis volubilis (L.fil.) S.Reuss, Liede & Meve

Stephanotis volubilis is a stout tall climber with a wide distribution across south China and tropical Asia.

Panama tree

Sterculia apetala (Jacq.) H.Karst.

Sterculia apetala is a large tropical deciduous tree with a range of documented uses and extractable antioxidant compounds.

Lance-leaved Sterculia

Sterculia lanceolata Cav.

Sterculia lanceolata Cav. is a Malvaceae tree found in southern China and Vietnam, with distinctive exposed seed development in colored follicles.

Seven Sisters' Fruit

Sterculia monosperma Vent.

Sterculia monosperma is a deciduous tropical nut-bearing cultivated tree with edible, traditionally used nuts.

Common Star-Chestnut

Sterculia rogersii N.E.Br.

Turkish starflower

Sternbergia colchiciflora Waldst. & Kit.

Sternbergia colchiciflora is the smallest autumn-flowering gold crocus, a small yellow-flowered bulb with wide Eurasian distribution.

Winter Daffodil

Sternbergia lutea (L.) Ker Gawl. ex Spreng.

Sternbergia lutea is a bulbous yellow-flowered plant with a wide Eurasian distribution and is popular in cultivation.

Sawtooth Candyleaf

Stevia serrata Cav.

Umbrella fern

Sticherus cunninghamii (Heward ex Hook.) Ching

Sticherus cunninghamii, the umbrella fern, is an endemic New Zealand fern with distinctive umbrella-shaped fronds.

Shiny fan fern

Sticherus flabellatus (R.Br.) H.St.John

Sticherus flabellatus, the shiny fan fern, is a small attractive fern native to eastern Australia and New Zealand.

water toothleaf

Stillingia aquatica Chapm.

Stillingia aquatica is a flowering spurge shrub native to the Southeastern US, described by Alvan Wentworth Chapman in 1860.

Narrow-leaved Stillingia

Stillingia linearifolia S.Watson

Stillingia linearifolia is a monoecious perennial herb with linear leaves and erect, flowering stems.

Annual Toothleaf

Stillingia spinulosa Torr.

Stillingia spinulosa, annual toothleaf, is a monoecious euphorb plant native to Southwestern United States deserts.

Queen's Delight

Stillingia sylvatica L.

Stillingia sylvatica, or queen's delight, is a euphorbiaceae flowering plant endemic to sandy areas of the southeastern US.

Texas Stillingia

Stillingia texana I.M.Johnst.

Texas toothleaf (Stillingia texana) is a flowering euphorb species native to the South Central US and northern Mexico.