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PlantFiles: Fork-Leafed Cycad
Cycas longipetiolula

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Family: Cycadaceae
Genus: Cycas (SY-kas) (Info)
Species: longipetiolula (long-ee-pet-ee-OL-yoo-la) (Info)

Category:
Cycads

Height:
12-15 ft. (3.6-4.7 m)

Spacing:
12-15 ft. (3.6-4.7 m)

Hardiness:
USDA Zone 9b: to -3.8 C (25 F)
USDA Zone 10a: to -1.1 C (30 F)
USDA Zone 10b: to 1.7 C (35 F)
USDA Zone 11: above 4.5 C (40 F)

Sun Exposure:
Unknown - Tell us

Danger:
Seed is poisonous if ingested
All parts of plant are poisonous if ingested
Plant has spines or sharp edges; use extreme caution when handling

Bloom Color:
Inconspicuous/none

Bloom Time:
Unknown - Tell us

Foliage:
Grown for foliage
Evergreen

Other details:
This plant is suitable for growing indoors
Average Water Needs; Water regularly; do not overwater
This plant may be considered a protected species; check before digging or gathering seeds
This plant is resistant to deer
Provides winter interest
Suitable for growing in containers

Soil pH requirements:
Unknown - Tell us

Patent Information:
Unknown - Tell us

Propagation Methods:
From seed; germinate in a damp paper towel

Seed Collecting:
Remove fleshy coating on seeds before storing
Wear gloves to protect hands when handling seeds

Profile:

No positives
2 neutrals
No negatives

Gardeners' Notes:

RatingAuthorContent
Neutral DAGuertin On Mar 31, 2009, DAGuertin from Houston, TX (Zone 9a) wrote:

Listed as a synonym to C. multipinnata, micholitzii, and bifida across various reference texts, it was listed as a species in 1994. Confusion still abounds, and the scarcity of material maintained as longipetiolula makes things even more difficult.

Due to the various changes in name, the original material bred and distributed as longipetiolula has since been pollinated and / or used to pollinate all three of the previous 'synonyms,' resulting in a hybrid swarm, and effectively contaminting previously known 'true to type' individual gene pools of the three.

Regardless of the species issue, it is a protected species under CITES appendix II, strictly regulating wild-collected plants and seeds for international trade.

Neutral QCHammy On Feb 26, 2008, QCHammy from San Tan Valley, AZ (Zone 9a) wrote:

This is how this plant is described by Dingyue Wang in CYCADS IN CHINA. "Native to monsoonal forest along Yunnans Yuanjiang River valley, it has a highly distinctive appearance, sporting several tall, arching, bipinnate leaves to just over 4 m (14 ft.) long, supported by a short, mostly underground caudex. The leaflets have pretty, undulate margins and are held on short stalks or "petiolules". In cultivation, it appreciates a warm temperate or tropical climate with plenty of rainfall. It can sustain cool conditions but is not hardy to more than an occasional short freeze."

Regional...

This plant has been said to grow in the following regions:

,
Houston, Texas



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