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dozydawn · 8 months

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Rubina Verde/Cranberry Uranium Glass Jack in the Pulpit Vases.

#uranium glass #rubina verde #jack in the pulpit #glassware #vase #cranberry uranium glass #fave #objectum

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geopsych · 4 days

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Be ready. Jack is setting up the pulpit and will be preaching the gospel of the woodland and singing hymns of the water over stones.

#plants #plantblr #jack in the pulpit #arisaema #pennsylvania #arisaema triphyllum #april #spring #springtime

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dailybotany · 10 months

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Today's plant is Arisaema triphyllum, also known as Jack-in-the-Pulpit. (photos are mine)

A. triphyllum is actually a species complex of four (or five, depending on who you talk to) closely related species. All species are native to Eastern North America and are found in deep, moist soils rich in organic matter. This group is still undergoing lots of debate in the taxonomy world, and the exact grouping and lineages are not fully known.

This species complex is part of the family Araceae, which is an incredibly cool (in my opinion) and diverse family that predominantly lives in the tropics of South American and eastern Asia.

Like most of its relatives, it attracts pollinators (at least in part) through deceptive scent compounds, which are volatilized and spread under exposure to heat. Unlike many of its relatives, Jack-in-the-Pulpit does not appear to utilize thermogenesis (active metabolic heat production) in its flowering parts to achieve this--it is posited that absorbed heat from the sun is sufficient for them to release these compounds! (Barriault et al. 2009)

Another trait it shares with almost all of its relatives is a very particular defense strategy: tiny, tiny knives. Its shiny red fruits might look tasty to some, but beware: the sensation of biting into it has been described by those brave (read: foolish) souls who've tried it as "like chewing glass."

This sensation is caused by tiny daggers of crystalline calcium oxalate (called raphides) being forcibly ejected from their cells right into your tender mouth parts by the force of your own chewing. Now that's what I call retribution!

#Arisaema triphyllum #Araceae #plant of the day #jack in the pulpit #plants #botany #nature

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fleetingfutures · 2 days

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jack-in-the-pulpit // 26 may 2023

#nature photography #original photography #puremichigan #nature #photographers of tumblr #jack in the pulpit #naturecore #michigan photography #michigan #best of nature #flowers #native plants #plantcore #greencore #mine #fleetingfutures #spring #may

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julesofnature · 7 months

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"If you take any flower you please and look it over and turn it about and smell it and feel it and try to find out all its little secrets, not of flower only but of leaf, bud and stem as well, you will discover many wonderful things. This is how you make friends with plants, and very good friends you will find them to the end of our lives." - Gertrude Jekyll

Jack-in-the-Pulpit Fruits Maturing

After the spathe (hood) dies back, Jack-in-the-pulpit fruit is more obvious, especially as the green berries turn brilliant reddish-orange at this time of year. Eventually the stem withers and the seed head falls to the ground. The tissues of Jack-in-the-pulpit, particularly the roots, contain high toxic levels of oxalic acid. The berries, if eaten, cause a burning sensation in the mouth and throat due to physical cuts caused by the crystals of calcium oxalate. Although cattle, goats, pigs and sheep are susceptible to the toxin, white-tailed deer, wild turkeys and wood thrushes appear to consume them without distress.

#by J Marion Brown #macrophotography #nature photography #jack in the pulpit #photographers on tumblr

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textless · 2 years

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