Dypsis hiarakae

From Palmpedia - Palm Grower's Guide
Jump to: navigation, search
Dypsis (DIP-sis)
hiarakae (hee-ah-RAH-keh)
DhIMG 3439.jpg
Hilo, Hawaii. Photo by Timothy Brian.
Scientific Classification
Genus: Dypsis (DIP-sis)
hiarakae (hee-ah-RAH-keh)
None set.
Native Continent
Habit: Solitary
Leaf type: Pinnate
Survivability index
Common names
Sinkiara, Tsirika (Tsimihety).

Habitat and Distribution

Madagascar; Manongarivo, Masoala and Mananara Avaratra. Lowland to submontane rain forest;
Hawaii. Photo by Bill Austin
ridgetop or flat slope; alt. 240-600 m.


Solitary palm. STEM 3-6 m, 1.2-2.5 cm in diam., sometimes stilt-root-ed at the base; internodes 1.5-6 cm long, pale green, ± glabrous. LEAVES 7-9 in the crown, arching, pinnate; sheath 18-22 cm long, 2/3 closed, pale green with few scattered scales, denser distally, with ragged margins; petiole 15-17 cm long, 5-8 x 2-4 mm in diam., adaxially flat, with scattered brown scales; rachis 35-67 cm long, in mid-leaf 2-4 mm wide, with scattered scales; leaflets 12-21 on each side of the rachis, in groups of 2-5, slightly fanned, the group interval 5-12 cm, leaflet interval 0.5-0.9 cm, the proximal 18-24 x 0.3-0.9 cm, median 15-31 x 1.5-5 cm, distal 10-25 x 1.3-4.5 cm, main veins 1-3 (in the distal pair 3-5), with scattered scales on the major and minor veins, and sometimes with long ramenta, apices attenuate, distal pair joined for 1-5 cm, with the apices dentate over a width of 5-10 mm. INFLORESCENCE infrafoliar, branched to 2 (rarely 3) orders, erect with numerous arching to hanging rachillae; peduncle 7-37 cm long, proximally about 12 x 4 mm, distally 3-6 x 3.5-5 mm, densely scaly; prophyll 10-19 cm long, 8-12 mm wide, borne at 1-4 cm above the base of the peduncle, with scattered scales, open in the distal 1-3.5 cm; peduncular bract inserted at 9-14 cm from the base of the peduncle, 14-26 cm long, open for most of its length, beaked for 3 cm, glabrous, rapidly deciduous; rachis 7.5-17 cm long, glabrous or nearly so with 7-10 branched and 5-8 unbranched first order branches, the proximal of these with an axis of up to 7 cm with up to 6 rachillae; rachillae 17-27 cm long, 1-2 mm in diam., glabrous to puberulous. STAMINATE FLOWERS with sepals 1-1.2 x 1-1.2 mm; petals 2.8-3 x 1.5-2 mm; stamens 6, biseriate, filaments about 1 mm, anthers 1.3-1.5 x 0.6 mm, parallel and dorsifixed; pistillode about 1 mm. PISTILLATE FLOWERS with sepals 0.9-1.4 x 0.6-1.5 mm; petals 1.5-2.1 x 1.6-2.4 mm; staminodes 6, 0.3-0.5 mm. FRUIT red, ellipsoid with a rounded apex, about 9 x 5 mm. SEED 6.5-7 x 3.5 mm, obtuse at both ends, with homogeneous endosperm. (J. Dransfield and H. Beentje. 1995)/Palmweb. Editing by edric.

NOTE: This species seems closest to D. confusa, but is distinct in the long rachillae. (J. Dransfield and H. Beentje. 1995)/Palmweb.


Cold Hardiness Zone: 10a

Comments and Curiosities

A slightly nondescript medium-sized palm from rain forest in the north. The name refers to a village on the west coast of Masoala. (J. Dransfield and H. Beentje. 1995)/Palmweb.

Uses: Stems used to make blowpipes for poison darts, in Manongarivo.

Conservation: Rare, possibly vulnerable. Numbers are probably less than a few hundred. (J. Dransfield and H. Beentje. 1995)/Palmweb.

External Links


Special thanks to Geoff Stein, (Palmbob) for his hundreds of photos.

Special thanks to Palmweb.org, Dr. John Dransfield, Dr. Bill Baker & team, for their volumes of information and photos.

Glossary of Palm Terms; Based on the glossary in Dransfield, J., N.W. Uhl, C.B. Asmussen-Lange, W.J. Baker, M.M. Harley & C.E. Lewis. 2008. Genera Palmarum - Evolution and Classification of the Palms. Royal Botanic Gardens, Kew. All images copyright of the artists and photographers (see images for credits).

Dransfield, J. & Beentje, H. 1995. The Palms of Madagascar. Royal Botanic Gardens, Kew and The International Palm Society.
Many Special Thanks to Ed Vaile for his long hours of tireless editing and numerous contributions.

Back to Palm Encyclopedia

Retrieved from "http://palmpedia.net/wiki/index.php5?title=Dypsis_hiarakae&oldid=135631"