Genus

Astrophytum

Q: What is Astrophytum?

Astrophytum is a genus level taxonomy entry identified by the scientific name Astrophytum.

Taxonomy record for Astrophytum.

Child Taxa

Species Astrophytum myriostigma Astrophytum myriostigma Species Astrophytum asterias Astrophytum asterias

Plants In This Group

Astrophytum myriostigma

Astrophytum myriostigma is one of the most recognizable spineless cacti in cultivation. It is loved for its star-shaped rib structure, smooth body and pale flecked surface rather than for dramatic spines. The commercial product name “Bishop’s Cap Cactus” is clear and useful for buyers; the botanical dictionary keeps the scientific name Astrophytum myriostigma Lem. POWO/Kew treats the name as accepted and records the native range as northeastern Mexico. World Flora Online also reports the name as accepted in Cactaceae.

Astrophytum myriostigma var. nudum

Green Bishop's Cap Cactus

Astrophytum myriostigma var. nudum is a cleaner green, reduced-flecking form of Astrophytum myriostigma, the Bishop's Cap cactus. It should not be presented as Star Cactus; Star Cactus belongs to the Astrophytum asterias line.

Astrophytum asterias 'Star Shape'

Star Cactus

Astrophytum asterias is a small, spineless, flattened cactus with a clean star-like body and orderly woolly areoles. The product name “Star Cactus” or “Sand Dollar Cactus” is clear for buyers, while the botanical dictionary keeps the scientific basis: Astrophytum asterias (Zucc.) Lem. POWO/Kew treats the name as accepted and records a narrow native range from southern Texas to Nuevo León and Tamaulipas in Mexico. World Flora Online also reports the name as accepted in Cactaceae.

Frequently Asked Questions

What is Astrophytum?

Astrophytum is a genus-level taxonomy entry identified by the scientific name Astrophytum.

Which rank is Astrophytum?

Astrophytum is shown as a genus in our botanical dictionary.

Which groups sit below Astrophytum?

Child taxonomy entries include Astrophytum myriostigma, Astrophytum asterias.

Are there plants related to Astrophytum?

Yes. Related dictionary entries include Astrophytum myriostigma, Green Bishop's Cap Cactus, Star Cactus.

Is this taxonomy page a care guide?

No. This page explains scientific classification; light, watering, and safety guidance belongs on individual plant pages.

Is Astrophytum a product category?

No. This is a scientific taxonomy record. Product categories are organized separately around customer search intent.

Why is the Latin name shown?

The Latin scientific name reduces ambiguity between common names across languages and regions.

Where can I see the parent ranks?

The taxonomy card shows the parent ranks of Astrophytum inside the scientific hierarchy.

Can this page change over time?

Yes. Taxonomy and dictionary content can be updated as botanical data, greenhouse observations, and collection records improve.

Why is this different from a plant detail page?

This page explains a classification node. Individual plant pages contain care notes, collection links, and practical growing information.