Fagaceae
Post oak
Quercus stellata
- Family
- Fagaceae
- Genus
- Quercus
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Common names
By language (4)
- Chinese
- 星毛栎
- English
- Post oak, Iron oak
- French
- Chêne étoilé
- Spanish
- Roble de los postes, Roble encino, Roble para postes
Synonyms
- Quercus alba var. minor Marshall
- Quercus floridana Shuttlew. ex A.DC.
- Quercus fusca Raf.
- Quercus gonoloba Raf.
- Quercus heteroloba Raf.
- Quercus lobulata Sol. ex Sm.
- Quercus minor (Marshall) Sarg.
- Quercus obtusiloba Michx.
- Quercus stellata f. cruciformis Trel.
- Quercus stellata f. heterophylla Ettingsh. & Krasan
- Quercus stellata f. houbae Trel.
- Quercus stellata f. laevis Trel.
- Quercus stellata f. mollissima Trel.
- Quercus stellata f. oblonga Trel.
- Quercus stellata f. quadrata Trel.
- Quercus stellata f. reducta Trel.
- Quercus stellata f. rufescens (Sarg.) Trel.
- Quercus stellata f. sterrettii Trel.
- Quercus stellata f. tonsa Trel.
- Quercus stellata var. anomala Sarg.
- Quercus stellata var. floridana A.DC.
- Quercus stellata var. palmeri Sarg.
- Quercus stellata var. parviloba Sarg.
- Quercus stellata var. rufescens Sarg.
- Quercus stellata var. stellata
- Quercus villosa Walter
Flowers
- In flower
- March to April (from 17 flowering iNaturalist observations worldwide)
- Flower colour
- yellow (USDA PLANTS Database)
Characteristics
- Growth habit
- Tree
- Lifespan
- Perennial
- In the US and Canada
- Lower 48 states: native
Toxicity: Moderate, as listed by the USDA PLANTS Database (2025-05-29). USDA rates how toxic a plant is to people or livestock; it is not a pet-safety rating, so ask a vet or poison line if a pet or child ate it.
Photos
FlowerPhoto: Jeff Clark, CC BY 4.0, from iNaturalist 
FlowerPhoto: Sam Kieschnick, CC BY 4.0, from iNaturalist 
Photo: lanechaffin, CC0, from iNaturalist 
Photo: Choess, CC BY-SA 3.0, from Wikimedia Commons 
Photo: Andrew Conboy, CC BY 4.0, from iNaturalist 
Photo: psweet, CC BY-SA 4.0, from Wikimedia Commons 
Photo: Mark Connolly, CC0, from iNaturalist 
Photo: Andrew Conboy, CC BY 4.0, from iNaturalist 
Photo: CK2AZ, CC BY 4.0, from iNaturalist 
Photo: Jeff Clark, CC BY 4.0, from iNaturalist 
Photo: lanechaffin, CC0, from iNaturalist 
Photo: Ken Kneidel, CC0, from iNaturalist
More in Quercus
- Pedunculate oakQuercus roburFagaceae
- Cork oakQuercus suberFagaceae
- Sessile oakQuercus petraeaFagaceae
- Holm oakQuercus ilexFagaceae
- European turkey oakQuercus cerrisFagaceae
- Northern red oakQuercus rubraFagaceae
- Downy oakQuercus pubescensFagaceae
- Kermes oakQuercus cocciferaFagaceae
- Pin oakQuercus palustrisFagaceae
- White oakQuercus albaFagaceae
- Hungarian oakQuercus frainettoFagaceae
- Daimyo oakQuercus dentataFagaceae
Sources: classification, synonyms from World Flora Online Plant List (2026-06, CC0 1.0); common names, popularity from Wikidata (2026-10-26, CC0 1.0); common names, US characteristics from USDA PLANTS Database (2025-05-29, CC0 1.0). About our plant data.