I was sowing some Arisaema from the Chris Chadwell seed share from Little Tibet, and it inspired me to start this topic. I'll start by posting some Arisaema photos from spring 2011.
I have several good purple-stemmed forms of the common Arisaema triphyllum (Jack-in-the-Pulpit). This species is so variable, that one can save some $$$ and enjoy the many variant forms of A. triphyllum, without the need to pay great sums for Asian Arisaema species (of course, the Asian species are remarkable too). Arisaema also show promiscuity in the garden also hybridize readily, so I start out with one such garden hybrid.
The following 4 photos show a self-sown plant with big bold leaves, obviously of the A. triphyllum type. The flowers are green on the outside, dark brownish and white striped inside.
A. triphyllum hybrid? Views showing the mottled stems that are characteristic for some Asian species I grow.
The following two photos show A. amurense x tashiroi, a cross that occurred in my garden, producing robust plants intermediate to both species, robust bold growth from amurense, but with more leaflets showing the tashiroi influence, and striking mottled stems and leaf-sheaths, also from tashiroi.
The next 4 photos show two of the darkest purple-stemmed forms of A. triphyllum I have. The original plants came from my parent's property years ago, where the "jacks" occurred in all sorts of colors, from all green to near black, solid color to light - boldly striped, and everything inbetween. I don't pay much attention to the many named subspecies or varieties of A. triphyllum after seeing such wide variability in single populations. These plants seed around in the garden, with seedling variability continuing; I favor the darker flowered ones, and forms that show color on the outside of the hooded blooms, and ones with colored stems.
A. triphyllum, purple-stemmed form, clumping up nicely, lots of babies around the parent plant.
Yet another purple-stemmed A. triphyllum form, robust and with showy jacks.