Large clumps of 4-sided vertical stems
Cactus and Succulents
Euphorbia rossii
Rocky slopes, endangered in habitat. Spiny stems, narrow green crinkly leaves. Will lose leaves in winter. Orange-brown flowers. Branches in all directions.
Euphorbia royleana
Succulent shrub, branchy to 10ft.; large green leaves
Euphorbia schoenlandii
E. fasciculata
Vertical stems to 20″h., spine-like leaf-clumps, narrow ephemeral leaves. Prominent tubercles bearing long peduncles that harden into spines.
Euphorbia similiramea
Red-grey spines, wildly branching and pendant green-blue stems.
Euphorbia sipolsii
Euphorbia squarrosa
Green spiny branches atop an irregular caudex which is underground in habitat. Green inflorescence with yellow and red centers.
Euphorbia stellata
Euphorbia stenoclada
Succulent shrub to 20ft.
Euphorbia submammillaris v. pfersdorfii
Large clusters of tiny 2″ narrow green stems tipped with small green leaves.
Euphorbia suzannae
Multi-ribbed globe with prominent tubercules and tap root. Forms clusters. Greenish brown flowers with sulphur-yellow centers.
Euphorbia teke
Thickets of small arborescent green stems. Large green leaves at stem tips, drop quickly in full sun.
Euphorbia tirucalli
Pencil-like stems. Will grow to a fully branched 20ft. tall tree where hardy outside in the ground. Grows well indoor as a houseplant, 7 to 8 ft. tall. Red-tipped in full sun. The milky latext sap is poisonous and can cause skin irritation. One of the most poisonous houseplants. Keep away from children.
Euphorbia tortirama
Euphorbia trichadenia
Yellow flowers with frilled edges in the forks of the leaves. Large cork-like caudex grows 8-10″. Strappy green leaves in vining stems.
Euphorbia trigona
E. hermentiana
Lots of tight vertical branches, leafy; green with white patterning. Can grow to 8 to 12ft tall, but can be kept below 8ft indoor in a pot with very low watering, good sun, and not too much fertilizer.
Euphorbia trigona “Rubra”
E. hermentiana
Lots of tight vertical branches, leafy; green with white patterning with a hint of red will turn bright red in sun. Can grow to 8 to 12ft tall, but can be kept below 8ft indoor in a pot with very low watering, good sun, and not too much fertilizer.
Euphorbia umbraculiformis
Wide spreading branches with green-leafed rosettes at the ends through the summer and fall. Keep dry in winter.
Euphorbia unispina
Forms a small cluster of tall stems, to 12ft., with an outcropping of green leaves at the top. Keep indoor in winter. Fast draining soil.
Euphorbia x lomi “Salmon”
Shrub to 3′; covered with large salmon-pink flowers.
Euphorbia xylophylloides
Fascicularia bicolor
Fascicularia pitcairniifolia
Medium bromeliad to 30″; leaves turn red before blooming
Faucaria bosscheana
Small green, soft-toothed mesemb w/smooth glossy surface. Variable, can be nearly toothless. Small clumps of mini aloe-like rosettes. Yellow flowers.
Faucaria felina
Green, soft-toothed mesemb w/smooth surface. Small clumps of mini aloe-like rosettes.
Faucaria tuberculosa
F. felina ssp. tuberculosa
A dark-green leafed mesemb, with teeth-like tubercules on surface
Fenestraria aurantiaca
2-3″ clusters. Transparent tips are the characteristic windowed leaves. In habitat the leaves hide below the surface and only the windowed tips are visible. Rot-prone: low water, or mist. Flowers range from off-white to yellow/gold.
While commonly known as F. aurantiaca, can be found as F. rhopalophylla subsp. aurantiaca with yellow flowers and subsp. rhopalophylla with white flowers.
Fenestraria rhopalophylla
2-3″ clusters. Transparent tips are the characteristic windowed leaves. In habitat the leaves hide below the surface and only the windowed tips are visible. Rot-prone: low water, or mist. Flowers are white.
While commonly known as F. aurantiaca, can be found as F. rhopalophylla subsp. rhopalophylla with white flowers and subsp. aurantiaca with yellow flowers.
Ferocactus
The barrel cacti of the North American deserts, globose to cylindrical forms.
Ferocactus chrysacanthus f. rubrispinus
Solitary barrel with vibrant red spines. Slow growing, densely spined. 12 inch diameter, eventually growing 3ft tall. Keep dry in winter.
