General Plant Information (Edit)
Plant Habit: Cactus/Succulent
Sun Requirements: Full Sun to Partial Shade
Minimum cold hardiness: Zone 11 +4.4 °C (40 °F) to +7.2 °C (50 °F)
Leaves: Deciduous
Flowers: 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: Pink
Suitable Locations: Xeriscapic
Dynamic Accumulator: B (Boron)
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

Image
Common names
  • Monadenium
  • Euphorbia
Botanical names
  • Accepted: Euphorbia ritchiei
  • Synonym: Monadenium ritchiei

Photo Gallery
Location: Jakarta
Date: 2023-11-10
Location: Baja California
Date: 2016-11-16
Uploaded by hlutzow
Location: Jakarta
Date: 2023-11-10

Date: 2022-11-12
Location: Jakarta
Date: 2021-10-27
Variegated Euphorbia Ritchiei
Location: Botanical Garden of the Technical University of Delft
Date: 2017-09-20
Location: Indoors - San Joaquin County, CA
Date: Winter Season - 05Feb2017
New leaf growth and updated photo of my Monoadenium ritchiei
Location: Baja California
Date: 2012-11-12
Location: At our garden - San Joaquin County, CA
Date: 2016-06-18
Newly acquired Monoadenium ritchiei
Location: Louisville
Date: 2020-04-11

Date: 2016-12-08
Uploaded by karmatree

Date: 2016-12-08
Comments:
  • Posted by Baja_Costero (Baja California - Zone 11b) on Nov 17, 2022 11:36 AM concerning plant:
    Clumping succulent with knobby, sausage-like stems and delightful hooded pink cyathia, which appear in abundance near the tips of stems at maturity. From East Africa. Somewhat variable, especially in terms of the size/shape and persistence of leaves (which are generally short lived). My plant was mostly leafless. Variegated forms exist. Branches may appear near the base and/or higher up. Final size pot in the range of 6-8 inches. Relatively common in cultivation (one of the best represented members of the former genus Monadenium, now lumped with Euphorbia, characterized by having hooded cyathia).

    Provide excellent drainage and strong light for best form and color. My plant lived several years outside in our mild winter rainfall climate (which is the opposite of the summer rainfall pattern in habitat) but eventually melted down after a particularly wet winter.

    Extremely sensitive to cold temps (not a good outdoor plant during winter except in the mildest of climates).
Plant Events from our members
tarev On June 18, 2016 Obtained plant
Bought from Poots Cactus Nursery - Ripon, CA
MySecretIslandGarden On July 30, 2022 Transplanted
» Post your own event for this plant

Discussion Threads about this plant
Thread Title Last Reply Replies
Looks like a bird by pepper23 Dec 29, 2023 9:31 PM 1

« Add a new plant to the database

» Search the Euphorbias Database: by characteristics or by cultivar name

« See the general plant entry for Euphorbias (Euphorbia)

« The Euphorbias Database Front Page

« The Plants Database Front Page

Today's site banner is by Zoia and is called "Late Spring Textures"

This site is protected by reCAPTCHA and the Google Privacy Policy and Terms of Service apply.