Explore / Range and rarity / Rare (≤ 5 counties)
Range and rarity
Rare (≤ 5 counties)
A broader rarity slice: taxa known from five counties or fewer nationwide. Includes single-county endemics plus the next-most-restricted species.
- Matching taxa
- 9,281
- Page
- 168 / 186
- Filter
- max_counties=5
Showing 8,351–8,400 of 9,281.
-
Solidago plumosa Small SOPLplumed goldenrod · Asteraceae -
Solidago radula Nutt. var. stenolepis Fernald SORASwestern rough goldenrod · Asteraceae -
Solidago simplex Kunth ssp. randii (Porter) Ringius var. monticola SOSIMRand's goldenrod · Asteraceae -
Solidago spithamaea M.A. Curtis SOSP6Blue Ridge goldenrod · Asteraceae -
Solidago ulmifolia Muhl. ex Willd. var. microphylla A. Gray SOULMelmleaf goldenrod · Asteraceae -
Solidago villosicarpa LeBlond SOVI10hairy-seed goldenrod · Asteraceae - Solidago ×ovata Friesner (pro sp.) [sphacelata × ulmifolia] SOOVgoldenrod · Asteraceae
- Solidago ×ulmicaesia Friesner [caesia × ulmifolia] SOUL4goldenrod · Asteraceae
- Solmsiella biseriata (Austin) Steere SOBI4Solmsiella moss · Erpodiaceae
-
Sophora arizonica S. Watson SOAR3Arizona necklacepod · Fabaceae -
Sophora chrysophylla (Salisb.) Seem. SOCHmamani · Fabaceae -
Sophora gypsophila B.L. Turner & A. Powell SOGY80Guadalupe Mountain necklacepod · Fabaceae -
Sophora gypsophila B.L. Turner & A. Powell var. guadalupensis SOGYGGuadalupe Mountain necklacepod · Fabaceae -
Sophora leachiana M. Peck SOLE3western necklacepod · Fabaceae -
Sophora tomentosa L. var. occidentalis (L.) Isely SOTOOyellow necklacepod · Fabaceae -
Sorbaria kirilowii (Regel) Maxim. SOKIgiant false spiraea · Rosaceae -
Sorbus hybrida L. SOHY3oakleaf mountain ash · Rosaceae -
Sorbus sambucifolia (Cham. & Schltdl.) M. Roem. SOSA3Siberian mountain ash · Rosaceae -
Sparaxis fragrans (Jacq.) Ker Gawl. SPFR2fragrant wandflower · Iridaceae -
Sparaxis fragrans (Jacq.) Ker Gawl. ssp. grandiflora (D. Delar.) Goldbl. SPFRGfragrant wandflower · Iridaceae -
Spartina densiflora Brongn. SPDE2denseflower cordgrass · Poaceae -
Spartina maritima (M.A. Curtis) Fernald SPMA6small cordgrass · Poaceae -
Spartina ×townsendii H. Groves & J. Groves (pro sp.) [alterniflora × maritima] SPTOcordgrass · Poaceae -
Spathiphyllum wallisii Regel SPWA2peace lily · Araceae -
Spathodea campanulata P. Beauv. SPCA2African tuliptree · Bignoniaceae -
Spathoglottis plicata Blume SPPLPhilippine ground orchid · Orchidaceae -
Spergula morisonii Boreau SPMO2Morison's spurry · Caryophyllaceae -
Spergularia macrotheca (Hornem.) Heynh. var. longistyla R.P. Rossb. SPMAL2sticky sandspurry · Caryophyllaceae -
Spergularia platensis (Camb.) Fenzl SPPL2La Plata sandspurry · Caryophyllaceae -
Spergularia purpurea (Pers.) G. Don f. SPPU8purple sandspurry · Caryophyllaceae -
Spermacoce densiflora (DC.) Alain SPDE3bouquet false buttonweed · Rubiaceae -
Spermacoce exilis (L.O. Williams) C. Adams SPEXPacific false buttonweed · Rubiaceae - Spermacoce floridana Urb. SPFL4Florida false buttonweed · Rubiaceae
-
Spermacoce tenuior L. SPTEslender false buttonweed · Rubiaceae -
Spermacoce tetraquetra A. Rich. SPTE6pineland false buttonweed · Rubiaceae -
Spermolepis hawaiiensis H. Wolff SPHA2Hawai'i scaleseed · Apiaceae -
Sphaeralcea ambigua A. Gray ssp. rosacea (Munz & I.M. Johnst.) Kearney SPAMRrose globemallow · Malvaceae -
Sphaeralcea ambigua A. Gray ssp. rugosa Kearney SPAMR2desert globemallow · Malvaceae - Sphaeralcea caespitosa M.E. Jones SPCA4tufted globemallow · Malvaceae
- Sphaeralcea caespitosa M.E. Jones var. caespitosa SPCAC3tufted globemallow · Malvaceae
- Sphaeralcea caespitosa M.E. Jones var. williamsiae N.H. Holmgren SPCAWRailroad Valley globemallow · Malvaceae
-
Sphaeralcea coccinea (Nutt.) Rydb. ssp. elata (Baker f.) Kearney SPCOEscarlet globemallow · Malvaceae -
Sphaeralcea coulteri (S. Watson) A. Gray SPCO2Coulter's globemallow · Malvaceae -
Sphaeralcea digitata (Greene) Rydb. ssp. tenuipes (Wooton & Standl.) Kearney SPDITjuniper globemallow · Malvaceae -
Sphaeralcea fendleri A. Gray ssp. albescens Kearney SPFEAthicket globemallow · Malvaceae -
Sphaeralcea fendleri A. Gray ssp. elongata Kearney SPFEEthicket globemallow · Malvaceae -
Sphaeralcea fendleri A. Gray ssp. tripartita (Wooton & Standl.) Kearney SPFETthicket globemallow · Malvaceae -
Sphaeralcea fendleri A. Gray ssp. venusta Kearney SPFEVthicket globemallow · Malvaceae -
Sphaeralcea gierischii N.D. Atwood & S.L. Welsh SPGI2Gierisch's globemallow · Malvaceae -
Sphaeralcea janeae (S.L. Welsh) S.L. Welsh SPJA3Jane's globemallow · Malvaceae