Plants starting with the syllable “So”

Seven-stamened sarcoca

Sarcoca heptandra

Also known as: South African pokeweed

Silky Hackberry

Celtis sericea

Also known as: South American hackberry

Soft brucea

Brucea mollis

Also known as: Soft-haired brucea

Soft-leaved greenwood

Lozanella permollis

Soft-leaved maclura

Maclura mollis

Also known as: Soft-leaved fustic

Soft-leaved winter cherry

Withania mollis

Softest roughleaf

Gironniera mollissima

Solomon Islands hackberry

Celtis salomonensis

Somali moringa

Moringa ruspoliana

Sommer's wood

Sommerxylon

Soper Small-leaved Hackberry

Celtis tenuifolia var. soperi

Also known as: Soper's dwarf hackberry

Soulamea

Soulamea soulameoides

Soulamea Tree

Soulamea

Southern Ancient Maidenhair Tree

Baiera australis

Southern Paulownia

Paulownia australis

Also known as: Southern Empress Tree

Southern ginkgoite

Ginkgoites australis

Southern yew

Austrotaxus

Soyaux's hackberry

Celtis soyauxii