Astrophytum myriostigma
Definition
A species of succulent cacti within the Astrophytum genus (Cactaceae family), native to the mountainous and arid regions of central and northern Mexico. The plant has a globose stem completely lacking spines, typically divided into 5 prominent ribs, giving it a three-dimensional star shape; its entire epidermis is densely covered by thousands of trichomes (microscopic white dots), giving it a characteristic silver-white hue, and its large flowers are pure yellow without a red center.
Bilingual Equivalents
- Astrophytum myriostigma
- Bishop's cap cactus
Grammatical & Source Details
| Inflection Type | Proper noun, scientific taxonomic standard, remaining morphologically invariable across academic structures. |
| Formation | Binomial nomenclature combining the genus name with the specific epithet derived from Greek 'myrios' (countless) and 'stigma' (mark/dot), addressing the epidermis markings. |
| Spelling / Pronunciation | [ˌæs.troʊ.ˈfaɪ.təm ˌmɪr.i.oʊ.ˈstɪɡ.mə] |
| Source | The Cactaceae Systematic Review and International Plant Names Index |
Contextual Usage Examples
RO: Un exemplar matur de Astrophytum myriostigma dezvoltă o formă columnară scurtă, dar își păstrează simetria perfectă a coastelor.
EN: A mature specimen of Astrophytum myriostigma develops a short columnar shape, but retains its perfect rib symmetry.
RO: Varietatea nudum de Astrophytum myriostigma este complet verde, deoarece îi lipsesc trichomii argintii de pe epidermă.
EN: The nudum variety of Astrophytum myriostigma is completely green because it lacks the silvery trichomes on its epidermis.
RO: Am adăugat în colecție un Astrophytum myriostigma cu 4 coaste, o formă geometrică rară denumită adesea quadricostatum.
EN: I added a 4-ribbed Astrophytum myriostigma to my collection, a rare geometric form often called quadricostatum.
Idioms & Phrases
Coaste de Astrophytum myriostigma / Astrophytum myriostigma ribs
RO: Secțiunile unghiulare proeminente, de regulă în număr de 5, care dau formă de mitră sau bonetă întregului corp al cactusului.
EN: The prominent angular sections, typically 5 in number, which shape the entire body of the cactus into a mitre or cap.
Varietatea nudum de Astrophytum myriostigma / Astrophytum myriostigma var. nudum
RO: Formă botanică distinctă caracterizată printr-o epidermă netedă, complet verde, fără punctele albe tipice speciei.
EN: A distinct botanical form characterized by a smooth, completely green epidermis, without the typical white dots of the species.
Flori de Astrophytum myriostigma / Astrophytum myriostigma flowers
RO: Mugurii florali mătăsoși care apar din areolele din vârful plantei, deschizându-se sub formă de pâlnie galbenă strălucitoare.
EN: The silky floral buds emerging from the apex areoles, opening into a bright shining yellow funnel shape.
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