| Symbol | Scientific name | Common name/Accepted name (for synonyms) | Family |
| STDI2 | Streptanthus diversifolius S. Wats. | variableleaf jewelflower | Brassicaceae
|
| STDR2 | Streptanthus drepanoides Kruckeberg & Morrison | sicklefruit jewelflower | Brassicaceae
|
| STFA2 | Streptanthus farnsworthianus J.T. Howell | Farnsworth's jewelflower | Brassicaceae
|
| STFE | Streptanthus fenestratus (Greene) J.T. Howell | Tehipite Valley jewelflower | Brassicaceae
|
| STGLG | Streptanthus glandulosus Hook. ssp. glandulosus | bristly jewelflower | Brassicaceae
|
| STGLP | Streptanthus glandulosus Hook. ssp. pulchellus (Greene) Kruckeberg | Mt. Tamalpais jewelflower | Brassicaceae
|
| STGLH2 | Streptanthus glandulosus Hook. ssp. secundus (Greene) Kruckeberg var. hoffmanii Kruckeberg | secund jewelflower | Brassicaceae
|
| STGLS3 | Streptanthus glandulosus Hook. ssp. secundus (Greene) Kruckeberg var. secundus | secund jewelflower | Brassicaceae
|
| STGLS4 | Streptanthus glandulosus Hook. ssp. secundus (Greene) Kruckeberg var. sonomensis Kruckeberg | secund jewelflower | Brassicaceae
|
| STGLS | Streptanthus glandulosus Hook. ssp. secundus (Greene) Kruckeberg | secund jewelflower | Brassicaceae
|
| STGLA | Streptanthus glandulosus Hook. var. albidus (Greene) Jepson | Streptanthus albidus ssp. albidus | Brassicaceae
|
| STGLN | Streptanthus glandulosus Hook. var. niger (Greene) Munz | Streptanthus niger | Brassicaceae
|
| STGLP2 | Streptanthus glandulosus Hook. var. pulchellus (Greene) Jepson | Streptanthus glandulosus ssp. pulchellus | Brassicaceae
|
| STGL8 | Streptanthus glandulosus Hook. | bristly jewelflower | Brassicaceae
|
| STGL | Streptanthus glaucus (S. Wats.) Jepson | Caulanthus glaucus | Brassicaceae
|
| STGR3 | Streptanthus gracilis Eastw. | alpine jewelflower | Brassicaceae
|
| STHE6 | Streptanthus hesperidis Jepson | serpentine jewelflower | Brassicaceae
|
| STHE | Streptanthus heterophyllus Nutt. | Caulanthus heterophyllus var. heterophyllus | Brassicaceae
|
| STHI2 | Streptanthus hispidus Gray | Mt. Diablo jewelflower | Brassicaceae
|
| STHO | Streptanthus howellii S. Wats. | Howell's jewelflower | Brassicaceae
|
| STHY | Streptanthus hyacinthoides Hook. | smooth jewelflower | Brassicaceae
|
| STIN10 | Streptanthus inflatus (S. Wats.) Greene | Caulanthus inflatus | Brassicaceae
|
| STINI | Streptanthus insignis Jepson ssp. insignis | plumed jewelflower | Brassicaceae
|
| STINL | Streptanthus insignis Jepson ssp. lyonii Kruckeberg & Morrison | Arburua Ranch jewelflower | Brassicaceae
|
| STIN | Streptanthus insignis Jepson | plumed jewelflower | Brassicaceae
|
| STLE8 | Streptanthus lemmonii (S. Wats.) Jepson | Lemmon's jewelflower | Brassicaceae
|
| STLO5 | Streptanthus longifolius Benth. | Pennellia longifolia | Brassicaceae
|
| STMAM | Streptanthus maculatus Nutt. ssp. maculatus | clasping jewelflower | Brassicaceae
|
| STMAO | Streptanthus maculatus Nutt. ssp. obtusifolius (Hook.) Rollins | clasping jewelflower | Brassicaceae
|
| STMA2 | Streptanthus maculatus Nutt. | clasping jewelflower | Brassicaceae
|
| STMI4 | Streptanthus micranthus Gray | Pennellia micrantha | Brassicaceae
|
| STMOE | Streptanthus morrisonii F.W. Hoffmann ssp. elatus F.W. Hoffmann | Three Peaks jewelflower | Brassicaceae
|
| STMOH | Streptanthus morrisonii F.W. Hoffmann ssp. hirtiflorus F.W. Hoffmann | Dorr's Cabin jewelflower | Brassicaceae
|
| STMOK | Streptanthus morrisonii F.W. Hoffmann ssp. kruckebergii Dolan & LaPre | Krukeberg's jewelflower | Brassicaceae
|
| STMOM | Streptanthus morrisonii F.W. Hoffmann ssp. morrisonii | Morrison's jewelflower | Brassicaceae
|
| STMO3 | Streptanthus morrisonii F.W. Hoffmann | Morrison's jewelflower | Brassicaceae
|
| STNI2 | Streptanthus niger Greene | Tiburon jewelflower | Brassicaceae
|
| STOB2 | Streptanthus obtusifolius Hook. | Streptanthus maculatus ssp. obtusifolius | Brassicaceae
|
| STOL | Streptanthus oliganthus Rollins | Masonic Mountain jewelflower | Brassicaceae
|
| STPA10 | Streptanthus parryi Greene | Guillenia lemmonii | Brassicaceae
|
| STPE5 | Streptanthus petiolaris Gray | Arabis petiolaris | Brassicaceae
|
| STPI5 | Streptanthus pilosus (S. Wats.) Jepson | Caulanthus pilosus | Brassicaceae
|
| STPL2 | Streptanthus platycarpus Gray | broadpod jewelflower | Brassicaceae
|
| STPO2 | Streptanthus polygaloides Gray | milkwort jewelflower | Brassicaceae
|
| STSE6 | Streptanthus secundus Greene | Streptanthus glandulosus ssp. secundus var. secundus | Brassicaceae
|
| STSP4 | Streptanthus sparsiflorus Rollins | sparseflower jewelflower | Brassicaceae
|
| STSQ | Streptanthus squamiformis Goodman | pineoak jewelflower | Brassicaceae
|
| STTOF | Streptanthus tortuosus Kellogg var. flavescens Jepson | shieldplant | Brassicaceae
|
| STTOO2 | Streptanthus tortuosus Kellogg var. oblongus Jepson | Streptanthus tortuosus var. pallidus | Brassicaceae
|
| STTOO3 | Streptanthus tortuosus Kellogg var. optatus Jepson | shieldplant | Brassicaceae
|
| STTOO | Streptanthus tortuosus Kellogg var. orbiculatus (Greene) Hall | shieldplant | Brassicaceae
|
| STTOP | Streptanthus tortuosus Kellogg var. pallidus Jepson | shieldplant | Brassicaceae
|
| STTOS | Streptanthus tortuosus Kellogg var. suffrutescens (Greene) Jepson | shieldplant | Brassicaceae
|
| STTOT2 | Streptanthus tortuosus Kellogg var. tortuosus | shieldplant | Brassicaceae
|
| STTO3 | Streptanthus tortuosus Kellogg | shieldplant | Brassicaceae
|
| STVA | Streptanthus validus (Greene) Cory | Streptanthus carinatus ssp. carinatus | Brassicaceae
|
| STREP2 | Streptanthus Nutt. | twistflower | Brassicaceae
|
| STHY11 | Streptocarpus �hybridus Voss | Cape-primrose | Gesneriaceae
|
| STREP5 | Streptocarpus Lindl. | Cape primrose | Gesneriaceae
|
| STAMA4 | Streptopus amplexifolius (L.) DC. ssp. americanus (J.A. & J.H. Schultes) A.& D. L�ve | Streptopus amplexifolius var. amplexifolius | Liliaceae
|
| STAMP3 | Streptopus amplexifolius (L.) DC. ssp. papillatus (Ohwi) A.& D. L�ve | Streptopus amplexifolius var. papillatus | Liliaceae
|
| STAMA | Streptopus amplexifolius (L.) DC. var. americanus J.A. & J.H. Schultes | Streptopus amplexifolius var. amplexifolius | Liliaceae
|
| STAMA2 | Streptopus amplexifolius (L.) DC. var. amplexifolius | claspleaf twistedstalk | Liliaceae
|
| STAMC | Streptopus amplexifolius (L.) DC. var. chalazatus Fassett | tubercle twistedstalk | Liliaceae
|
| STAMD | Streptopus amplexifolius (L.) DC. var. denticulatus Fassett | Streptopus amplexifolius var. amplexifolius | Liliaceae
|
| STAMG | Streptopus amplexifolius (L.) DC. var. grandiflorus Fassett | Streptopus amplexifolius var. amplexifolius | Liliaceae
|
| STAMO | Streptopus amplexifolius (L.) DC. var. oreopolus (Fern.) Fassett | Streptopus oreopolus | Liliaceae
|
| STAMP | Streptopus amplexifolius (L.) DC. var. papillatus Ohwi | claspleaf twistedstalk | Liliaceae
|
| STAM2 | Streptopus amplexifolius (L.) DC. | claspleaf twistedstalk | Liliaceae
|
| STCU5 | Streptopus curvipes Vail | Streptopus lanceolatus var. curvipes | Liliaceae
|
| STFA3 | Streptopus fassettii A.& D. L�ve | Streptopus amplexifolius var. chalazatus | Liliaceae
|
| STLAC | Streptopus lanceolatus (Ait.) Reveal var. curvipes (Vail) Reveal | twistedstalk | Liliaceae
|
| STLAL2 | Streptopus lanceolatus (Ait.) Reveal var. lanceolatus | twistedstalk | Liliaceae
|
| STLAL3 | Streptopus lanceolatus (Ait.) Reveal var. longipes (Fern.) Reveal | twistedstalk | Liliaceae
|
| STLAR | Streptopus lanceolatus (Ait.) Reveal var. roseus (Michx.) Reveal | twistedstalk | Liliaceae
|
| STLA16 | Streptopus lanceolatus (Ait.) Reveal | twistedstalk | Liliaceae
|
| STLA9 | Streptopus lanuginosus Michx. | Disporum lanuginosum | Liliaceae
|
| STOR | Streptopus �oreopolus Fern. (pro sp.) | | Liliaceae
|
| STROC2 | Streptopus roseus Michx. ssp. curvipes (Vail) Hult�n | Streptopus lanceolatus var. curvipes | Liliaceae
|
| STROL3 | Streptopus roseus Michx. ssp. longipes (Fern.) A.& D. L�ve | Streptopus lanceolatus var. longipes | Liliaceae
|
| STROC | Streptopus roseus Michx. var. curvipes (Vail) Fassett | Streptopus lanceolatus var. curvipes | Liliaceae
|
| STROL | Streptopus roseus Michx. var. longipes (Fern.) Fassett | Streptopus lanceolatus var. longipes | Liliaceae
|
| STROP2 | Streptopus roseus Michx. var. perspectus Fassett | Streptopus lanceolatus var. lanceolatus | Liliaceae
|
| STRO4 | Streptopus roseus Michx. | Streptopus lanceolatus var. roseus | Liliaceae
|
| STSTB2 | Streptopus streptopoides (Ledeb.) Frye & Rigg ssp. brevipes (Baker) Calder & Taylor | Streptopus streptopoides ssp. streptopoides var. brevipes | Liliaceae
|
| STSTB | Streptopus streptopoides (Ledeb.) Frye & Rigg ssp. streptopoides var. brevipes (Baker) Fassett | small twistedstalk | Liliaceae
|
| STSTS | Streptopus streptopoides (Ledeb.) Frye & Rigg ssp. streptopoides | small twistedstalk | Liliaceae
|
| STST3 | Streptopus streptopoides (Ledeb.) Frye & Rigg | small twistedstalk | Liliaceae
|
| STREP3 | Streptopus Michx. | twistedstalk | Liliaceae
|
| STJA8 | Streptosolen jamesonii (Benth.) Miers | marmalade bush | Solanaceae
|
| STREP4 | Streptosolen Miers | streptosolen | Solanaceae
|
| STAS2 | Striga asiatica (L.) Kuntze | Asiatic witchweed | Scrophulariaceae
|
| STDE4 | Striga densiflora (Benth.) Benth. | denseflower witchweed | Scrophulariaceae
|
| STGE2 | Striga gesnerioides (Willd.) Vatke | cowpea witchweed | Scrophulariaceae
|
| STHE8 | Striga hermonthica (Del.) Benth. | purple witchweed | Scrophulariaceae
|
| STLU2 | Striga lutea Lour. | Striga asiatica | Scrophulariaceae
|
| STRIG | Striga Lour. | witchweed | Scrophulariaceae
|
| STAF3 | Strigula affinis (A. Massal.) R. C. Harris | Strigula jamesii | Strigulaceae
|
| STAM9 | Strigula americana R. C. Harris | | Strigulaceae
|
| STBU3 | Strigula burmudana (Nyl.) R. C. Harris | | Strigulaceae
|
| STCO18 | Strigula complanata (Fee) Mont. | | Strigulaceae
|