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Queen
Sago
Cycas circinalis
L.
SIGH-kass
sir-cin-AY-lis
Cycads
- Cycadaceae
Explanation
of name:
For generic name see Cycas revoluta. Circinalis refers to the
circinate vernation (uncoiling) of the leaflets during leaf development.
Natural
range:
India (HUX, WH2)
Recognition
(much data from HUX, WH2): Looks like a small, pinnate-leaf palm but differs by
forming cones. Resembles Cycas revoluta but potentially larger (15(23)
tall vs. 6) with softer, longer leaves (to 9(10) long vs. about 5 long),
these having softer and hairless leaflets. The male cones cylindric, to about 2
long, the female cones resembling giant cabbages with egg-sized seeds on the
edges of the seed-leaves. According to WH2 material from the Pacific sometimes
identified as this species is not. The wrong material has a flotation pad
between the female gametophyte and the sclerotesta, enlarging the seed. In true
C. circinalis, this pad is absent and the outside of the sclerotesta has
minutely fibrous (as opposed to smooth or fissured in the Pacific material).
The leaves may be deciduous at times of drought (and/or seed dispersal in female
plants), although this is not generally true in cultivaiton. Grows readily from
seed, which requires pollination by a male individual.
Landscape
uses:
Used like a small, potentially branching palm, with the Cycad Aulacapsis
Scale ruining many specimens. See Cycas revoluta for comments on
coralloid roots. Bulbils on the stem. These can be removed and propagated.
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Botanical |
English |
FL native |
Growth form
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Flowering season
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Typical dimensions |
Suggested spacing |
Cultural conditions
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Problems |
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Cycas circinalis |
Queen Sago |
Exotic |
Resembles a Palm |
None (Cones) |
To 15
(HUX) |
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SU-PS
RS
ME
DT
(HUX, PBCC) |
Cycad Scale
Toxic
Sometimes deciduous |
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