If you did not find the "Lathyrus" you are looking for, here are some ideas:

Perhaps you found "Lathyrus" in a book, another catalogue or among personal communications
B and T World Seeds may be using a different spelling ( there are typos in our database - please tell Matthew if you find any ).

Try a more simple search. If you are looking for Capsicum frutescens Polo Pipiki try just Capsicum, for a broad search, or Pipiki for a narrow search.
Search and Shop also allows for searches with just bits of the name: cap iki Useful if you only have part of the name. Spaces are used as wildcards: Lathyrus.

Horticultural names and Herbal Medicinal names are often different to Botanical names, we try to include Horticultural names as synonyms (as well as recognised Botanical synonyms).
Herbal Medicinal names frequently refer to the part of the plant used and a version of the Latin name, for example "Belladonnae Radix", are the roots of Atropa belladonna ( the botanical name is sometimes written Atropa bella-donna )

Check google, to see whether "Lathyrus" is the usual Botanical plant name
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You can add "Lathyrus" to our Wants List, or try a different search:

Botanical name Search

Common Name Search