Cibotium glaucum

{{Short description|Species of plant}}{{Use dmy dates|date=November 2023 }}

{{Speciesbox

| image = Cibotium glaucum - Jardin Botanique de Lyon - DSC05374.JPG

| image_caption = At the Jardin botanique de Lyon

| image2 = Hapuu.jpg

| image2_caption = Fiddlehead

| genus = Cibotium

| species = glaucum

| authority = (Sm.) Hook. & Arn.

| synonyms_ref =

| synonyms =

• Cibotium st-johnii {{small|Krajina}}
• Dicksonia glauca {{small|Sm.}}

}}

Cibotium glaucum, the hāpu‘u pulu, is a species of fern in the family Cyatheaceae, native to Hawaii.{{cite web |url=https://www.wildflower.org/plants/result.php?id_plant=CIGL |title=Cibotium glaucum (Sm.) Hook. & Arn. |last1=Marcus |first1=Joseph A. |date=8 May 2015 |website=Plant Database |publisher=Lady Bird Johnson Wildflower Center |access-date=11 November 2023 |quote=Hawaiian Tree Fern, Hapu'U Pulu, Blonde Tree Fern, Female Tree Fern }}{{cite POWO |id=17069480-1 |title=Cibotium glaucum (Sm.) Hook. & Arn. |access-date=11 November 2023 }} A slow-growing tree fern typically {{cvt|6|to|10|ft|0}} tall but reaching {{cvt|25|ft|m|0}}, it is hardy in USDA zones 10 through 12.{{cite web |url=https://www.missouribotanicalgarden.org/PlantFinder/PlantFinderDetails.aspx?taxonid=285722 |title=Cibotium glaucum |author= |date=2023 |website=Plant Finder |publisher=Missouri Botanical Garden |access-date=11 November 2023 }} Its fiddleheads are the source of the material pulu, which means "mulch" or "padding" in the Hawaiian language.{{Hawaiian Dictionaries |pulu |accessdate=20 October 2010 }} Women used pulu as an absorbent during their menstrual cycles.{{Hawaiian Dictionaries |pe'a |exact=yes |accessdate=20 October 2010 }}

{{Gallery

|Starr 050130-3338 Cibotium glaucum.jpg|Growing over a trail

|Cibotium glaucum (5187985178).jpg|Used for landscaping

|2013.10.31.112959 Hapuu pulu tree fern (Cibotium glaucum) Hawaii Volcanoes National Park Hawaii.jpg|Fronds

|Cibotium glaucum kz02.jpg|Young fiddlehead

|Cibotium glaucum kz05.jpg|Sori

|Cibotium glaucum (5187983776).jpg|Spent sori

|Starr 050130-3345 Cibotium glaucum.jpg|Base

}}