Crataegus is not a valid species

Did you mean one of the species from the following list?

Crataegus coccinea - 1 collection objects

Crataegus cordata - 1 collection objects

Crataegus curvisepala - 1 collection objects

Crataegus mexicana - 1 collection objects

Crataegus monogyna - 2 collection objects

Crataegus rhipidophylla - 3 collection objects

Crataegus succulenta - 1 collection objects

Crataegus tanacetifolia - 1 collection objects