Monadenium (Euphorbia spectabilis) in the Euphorbias Database

Common names:
Give a thumbs up Monadenium
Give a thumbs up Euphorbia

General Plant Information (Edit)
Plant Habit: Cactus/Succulent
Life cycle: Perennial
Sun Requirements: Full Sun to Partial Shade
Water Preferences: Mesic
Dry Mesic
Plant Height: Up to 10 feet
Leaves: Deciduous
Fruit: Pops open explosively when ripe
Flowers: Showy
Other: In the genus Euphorbia, the flowers are reduced in size and aggregated into a cluster of flowers called a cyathium (plural cyathia). This feature is present in every species of the genus Euphorbia but nowhere else in the plant kingdom.
Flower Color: Red
Bloom Size: Under 1"
Flower Time: Late fall or early winter
Winter
Suitable Locations: Xeriscapic
Uses: Provides winter interest
Dynamic Accumulator: B (Boron)
Resistances: Drought tolerant
Toxicity: Other: All members of the genus Euphorbia produce a milky sap called latex that is toxic and can range from a mild irritant to very poisonous.
Containers: Needs excellent drainage in pots
Miscellaneous: With thorns/spines/prickles/teeth

Toothed midrib

Photo gallery:

Comments:
Posted by Baja_Costero (Baja California - Zone 11b) on Sep 21, 2020 9:22 PM

Single-stemmed or occasionally branched succulent columnar Euphorbia from Tanzania, capable of growing several feet tall but rarely reaching that size in cultivation. The glaucous green stem has 5 sides, and the corners bear a continuous arrangement of reddish brown teeth or spines, many of them branched. The leaves are keeled and they have teeth on the bottom of the midrib. They appear in summer and fall in winter, leaving scars to 1cm wide. Inflorescences appear on stout reddish deciduous peduncles that have the same sort of multicuspid teeth as the stems. The flowers are dramatic and long lasting during fall and early winter. This plant was formerly known as a Monadenium, and it has the hooded cyathia typical of that former genus. It can be readily propagated from cuttings, though it does not typically branch much if at all unless the growth point is damaged. Provide strong light for greatest long-term stability.

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Discussion Threads about this plant
Thread Title Last Reply Replies
Cactus and succulents chat by Baja_Costero Oct 24, 2020 9:40 PM 8,790

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