Thanks very much for your help! Paintbrushes
are a nightmare -- or a challenge, depending
on how you look at it. :-) But I think i'm
going to throw in the towel on 'difficult'
taxa. I had been trying to use the Jepson
Manual distributions, as a starting point for
process of elimination, but it's often
missing positive regions.
Don't feel bad -- you'd be surprised how many
professional botanists mess these up! And
even having studied them for years, I still
find pressed specimens and photos I can't ID
with certainty. The key in Jepson is so-so,
but, in their defense, it is VERY difficult,
probably impossible, to write a foolproof key
to this genus -- there is just too much
variation within species. That being said,
once you learn the species in the area around
you, you will begin to notice patterns &
begin to recognize the differences when you
find new onces. The best suggestion is to try
to ID a population, or at least several
plants within the population, rather than
looking for, say, the shape of the calyx
lobes on one plant. So, if 95% of the plants
have acute calyx lobes but a few have rounded
lobes, that's just variation within the
species. The key may say "calyx lobes
acute", but you may have only seen one
of the odd ones, so the key reaches a dead
end. This is why botanists often use phrases
like, "calyx lobes usually acute to
sometimes rounded". This can be very
frustrating to the person using the key, but
it reflects reality. Anyway, you can always
send the photos to me for a double check!
Your photos are very nice & had enough
detail for me to ID them... Have fun in the
field!
Thanks for the offer; I'll take you up on it!
(I'm living back East now, tho, so may not
have too much call.)
Dichotomous keys don't seem to work real well
unless you have specimens in the hand -- and
specimens from all stages of the life cycle,
at that. I used one of the newfangled,
computerized multi-criteria keys at Jepson,
though -- that was pretty cool.
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Comments and faves
Breeze530 added this photo to her favorites. (50 months ago)
Mark Egger (50 months ago | reply)
Castilleja foliolosa
Anita363 (49 months ago | reply)
Thanks very much for your help! Paintbrushes are a nightmare -- or a challenge, depending on how you look at it. :-) But I think i'm going to throw in the towel on 'difficult' taxa. I had been trying to use the Jepson Manual distributions, as a starting point for process of elimination, but it's often missing positive regions.
Mark Egger (49 months ago | reply)
Don't feel bad -- you'd be surprised how many professional botanists mess these up! And even having studied them for years, I still find pressed specimens and photos I can't ID with certainty. The key in Jepson is so-so, but, in their defense, it is VERY difficult, probably impossible, to write a foolproof key to this genus -- there is just too much variation within species. That being said, once you learn the species in the area around you, you will begin to notice patterns & begin to recognize the differences when you find new onces. The best suggestion is to try to ID a population, or at least several plants within the population, rather than looking for, say, the shape of the calyx lobes on one plant. So, if 95% of the plants have acute calyx lobes but a few have rounded lobes, that's just variation within the species. The key may say "calyx lobes acute", but you may have only seen one of the odd ones, so the key reaches a dead end. This is why botanists often use phrases like, "calyx lobes usually acute to sometimes rounded". This can be very frustrating to the person using the key, but it reflects reality. Anyway, you can always send the photos to me for a double check! Your photos are very nice & had enough detail for me to ID them... Have fun in the field!
Anita363 (49 months ago | reply)
Thanks for the offer; I'll take you up on it! (I'm living back East now, tho, so may not have too much call.)
Dichotomous keys don't seem to work real well unless you have specimens in the hand -- and specimens from all stages of the life cycle, at that. I used one of the newfangled, computerized multi-criteria keys at Jepson, though -- that was pretty cool.
rjadams55 added this photo to their favorites. (25 months ago)