''Calamus rudentum'' is a

liana A liana is a long-Plant stem, stemmed Woody plant, woody vine that is rooted in the soil at ground level and uses trees, as well as other means of vertical support, to climb up to the Canopy (biology), canopy in search of direct sunlight. T ...

in the palm family

Arecaceae The Arecaceae () is a family (biology), family of perennial plant, perennial, flowering plants in the Monocotyledon, monocot order Arecales. Their growth form can be climbing palm, climbers, shrubs, tree-like and stemless plants, all commonly k ...

native to

Thailand Thailand, officially the Kingdom of Thailand and historically known as Siam (the official name until 1939), is a country in Southeast Asia on the Mainland Southeast Asia, Indochinese Peninsula. With a population of almost 66 million, it spa ...

. It is a

rattan Rattan, also spelled ratan (from Malay language, Malay: ''rotan''), is the name for roughly 600 species of Old World climbing palms belonging to subfamily Calamoideae. The greatest diversity of rattan palm species and genera are in the clos ...

with a very long inflorescence, up to long, of which the three-quarters

proximal Standard anatomical terms of location are used to describe unambiguously the anatomy of humans and other animals. The terms, typically derived from Latin or Greek roots, describe something in its standard anatomical position. This position prov ...

to the stem is the inflorescence ''sensu stricto'' with 100,000 flowers, while the distal quarter is a

flagellum A flagellum (; : flagella) (Latin for 'whip' or 'scourge') is a hair-like appendage that protrudes from certain plant and animal sperm cells, from fungal spores ( zoospores), and from a wide range of microorganisms to provide motility. Many pr ...

(a spiny pseudo-tendril which aids the vine in climbing).

References

{{Taxonbar, from=Q15461304 Vines rudentum Plants described in 1790 Taxa named by João de Loureiro Flora of Cambodia Flora of Thailand Flora of Vietnam Flora of Myanmar Flora of Laos