Cryptocoryne crispatula var. kubotae ("tonkinensis")

Kubota's water trumpet

Cryptocoryne crispatula var. kubotae ("tonkinensis")

Kubota's water trumpet

(2 ratings)

The Crypt with the narrowest leaves
Grasslike strap-shaped leaves
Coppery red hues
Rarely found in trade

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Pot - Ø 5 cm (out of stock)

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Description

This grasslike crypt was originally introduced from the vicinity of Ubon Ratchathani in eastern Thailand. It is cultivated as aquarium plant for more than 35 years, but until 2015 it was seen as Cryptocoryne crispatula var. tonkinensis, even as the "true tonkinensis". It turned out that var. tonkinensis is a different plant from North Vietnam and South China. After that the plant from Thailand was described as a new variety, Cryptocoryne crispatula var. kubotae.
Kubota's water trumpet is the variety of Cryptocoryne crispatula with the narrowest leaves, which makes it highly interesting for aquascapers. Unfortunately this crypt is only occasionally available in trade. It has green to reddish-brown soft, smooth or slightly undulate leaves, 10-40 cm long and only 2-4 mm wide. Under water, the leaves assume beautiful coppery brown hues. The emersed leaves of this plant that is mostly labeled "Cryptocoryne tonkinensis" are generally shorter and broader than the submerged ones, often also with a brown marbling.

Cryptocoryne crispatula var. kubotae is a little demanding; at least medium lighting and an open place in the aquarium are recommendable. Nutrient-rich substrate and CO₂ addition are beneficial for its growth. Apparently it develops only few runners.

This very narrow leaved, medium-sized Cryptocoryne looks best as an accent plant or small group in the midground. Its appearance is characterised by delicate foliage and coppery hues.

This extremely narrow-leaved plant from Eastern Thailand is known as "Cryptocoryne tonkinensis" for many years. However it turned out as a new variety of Cryptocoryne crispatula. It is described under the name C. crispatula var. kubotae by Jacobsen & al. (2015). The variety kubotae is distinct from the true, broader leaved var. tonkinensis that occurs in northern Vietnam and southeastern China (Guangxi).

- To be continued -

Common names	Kubota's water trumpet
Misapplied names	Cryptocoryne crispatula var. tonkinensis, Cryptocoryne tonkinensis, Tonkin-Wasserkelch, Tonkin water trumpet
Complete botanical name	Cryptocóryne crispátula Engl. var. kúbotae N. Jacobsen & Bastmeijer
Family	Araceae
Genus	Cryptocoryne
Difficulty	medium
Usage	Midground, Nano tanks
Growth	slow
Propagation	Runners, Rhizomteilung, Splitting, cutting off daughter plants
Can grow emersed?	yes
Source	Flowgrow